Choose the correct letter, A, B or C. [br] Which part has the tutor already read

TUTOR: Before we start, Jimmy and Kathy, thanks for coming in today to talk about your current research paper! Well, I will also give you some suggestions for your future presentation later.
JIMMY: That’s great!
TUTOR: Okay, I [21]have read the introductory chapter, and so far I like where you’re going with your research, you two.
KATHY: Thanks! What did you think of the procedure section?
TUTOR: I haven’t gotten there yet. I will get to that and the results and discussion section in a bit.
JIMMY: Oh. If you haven’t read the rest, are you just saying you like the introduction?
TUTOR: No - [22]the layout is really well done. You have each section clearly marked and have the header and footer perfectly formatted, and your title page is right on the money. A lot of students have trouble with that one.
JIMMY: To be honest, we did refer a lot to the example we received in class.
TUTOR: That’s good to do for spacing and layout, as long as you’re not also copying the information. The background information is a little sparse, though. You may want to add to it.
KATHY: You think so? I was more worried about whether I had enough data.
TUTOR: You definitely need more background information. I would think about finding some more online articles or [23]doing more research in the campus library.
JIMMY: That’s a good idea - we can go tomorrow. I find it too tough finding the subject matter in the online journal database.
TUTOR: I also like being able to flip through the physical journal as opposed to trying to scroll down on a computer.
KATHY: Me too. Oh, I almost forgot. I’ve included all of my citations in the abstract, [24]but could you help me with the bibliography? I should be using a bibliography, right? Not an appendix?
TUTOR: Sure, I can help with that. Yes - for this type of scientific research paper, list all sources that you cite in the body of your paper in a bibliography. Go to the website I gave you last time to see the exact way to list each source.
KATHY: Okay, thanks. I’ll do that. We still have a lot of things to fix up.
TUTOR: Yeah, but there’s a lot of good stuff here to work with. So enough about the paper, how is the presentation going?
KATHY: Well, it’s alright. I am going to go [25]try out the new presentation software while Jimmy’s working on the bibliography.
JIMMY: Yeah, we are hoping to make an animation of an actual pump but still have a lot to learn about how to do that.
KATHY: Who would have thought before we started this project that we would be able to recreate the motion of a pump? This stuff is just so interesting.
TUTOR: So glad to hear it!
JIMMY: Yeah, I am glad I took engineering this semester. I would definitely like to keep up with it.
TUTOR: You know, there’s an organisation called the [26]Machine Engineer Society. You should look into joining it. You would need to score well in your engineering class to qualify, but I think you can do it.
KATHY: Hm, interesting. I will definitely check it out. I would really like to get in contact with some professionals in the engineering field to find out more. I don’t really know anyone in the field now, though.
JIMMY: I think [27]if you keep meeting people in your classes and professors you’ll be able to get in contact with some really helpful people.
TUTOR: Well said, Jimmy. If engineering pumps is something you both are specifically interested in, make sure you [28]stay up to date on new developments. In fact, you could visit the local water treatment facility periodically to see what new developments are going on.
KATHY: Hm, that may be a good way to get some practical experience.
TUTOR: Well, I don’t think they would let you handle any equipment by just visiting the facility. [29]If you really want to get your hands dirty, so to speak, I would recommend instead seeking a summer internship.
KATHY: Wow, you have so many helpful suggestions for getting a leg up. Now if only you could tell me how to get my work published!
JIMMY: Haha, wouldn’t that be nice.
TUTOR: Well, honestly, all you really need to do is [30]once you have a dissertation, present it. Present it often and to many audiences, and once you get feedback, adjust it. You’ll get published one day.
KATHY: Wow, this meeting has been truly inspiring. Thanks for your help!