(单选题)

According to the agreement, countries ______.

A.have to give a yearly report about their work

B.will be published if they fail to reduce pollution

C.are required to ensure investment in fighting pollution

D.should try to reach the agreed standard in five years

参考答案：C

参考解析：

细节理解题。根据第五段中的“It urges countries to spend trillions of dollars on creating new energy sources, like solar and wind power. It also requires countries to raise at least $ 100 billion each year to help developing countries”可知，它敦促各国花费数万亿美元来开发新能源，比如太阳能和风能。它还要求各国每年至少筹集1000亿美元来帮助发展中国家。故选C。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语