(单选题)

A campaign by vegans in 2012 forced Starbucks to remove cochineal from its drinks, because ______.

A.cochineal is toxic

B.cochineal is chemically unstable

C.cochineal is made from a species of scale insect

D.cochineal contains ultraviolet light

参考答案：C

参考解析：

细节理解题。根据第二段第二句“Cochineal, created by crushing up Dactylopius coccus, a species of scale insect, is safe to handle and consume, but its safety is trumped in the minds of some by its animal origin.”可知，胭脂虫红是一种通过碾碎胭脂虫球菌——一种介壳虫而制成的，它的处理和消费都很安全，但在一些人的心目中，它的安全性被它的动物来源所超越。因此，素食主义者发起运动迫使星巴克将胭脂虫红从草莓星冰乐中移除，是因为它来源于一种介壳虫（动物）。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