What has been the cause for changes in the sale of eggs? increasing price

* Hướng dẫn giải

Đáp án : D

D “concerns about cholesterol”dựa vào câu số 2 và 3 của đoạn văn “One egg yolk, in fact, contains a little more than two-thirds of the suggested daily cholesterol limit. This knowledge has caused egg sales to plummet in recent years, which in turn has brought about the development of several alternatives to eating regular eggs.”