(单选题)

Many Americans no longer maintain the meat-and-potatoes diet because ______.

A.salads, fruits and vegetables are more easily prepared

B.there is a rich supply of diverse foods

C.such diet is not as healthy as salads, fruits and vegetables

D.diverse foods vary with seasons

参考答案：B

参考解析：

细节理解题。第二段最后一句开头的Taking advantage of表明该分同结构和该句的主句形成了因果关系，因此本题的答案就是该句分词结构中的this abundance，结合该段第二句可以知道this abundance的所指与B项的内容是一致的。故选B。

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