(单选题)

Seed banks are built to ______.

A.research on seeds

B.produce new seeds

C.protect crop diversity

D.increase the number of seeds

参考答案：C

参考解析：

细节理解题。根据第一段中“Today, the world’s diversity of food crops is quickly decreasing. But scientists around the world are taking action. They are building seed banks.”可知建立种子银行是为了保护作物多样性。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