What is the main idea of the news item? [br] [originaltext]

游客2023-12-14  10

问题 What is the main idea of the news item? [br]  
News Item 3
    A UN agency says there are major funding gaps in efforts to help the agricultural sector adapt to climate change. The Food and Agriculture Organization, the FAO, says this could affect food security. The warning comes as the UN Climate Change Conference continues in Cancun, Mexico.
    The World Bank estimates it will cost about $2. 5 billion a year—for the next 40 years—to help agriculture in developing countries adapt to climate change. Other estimates say costs could run as high at $14 billion a year.

选项 A、$2 billion a year
B、$2. 5 billion a year
C、$ 10 billion a year
D、$ 14 billion a year

答案 B

解析 根据句(5)可知,世界银行估计每年将花费25亿美元帮助发展中国家的农业应对气候变化,故答案为[B]。
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