题目内容：

He took an umbrella ____the bright sun.
一共有四个选项：
A because of
B because
C as
D as for

优质解答

A because of； 后接名词；就是这个啦.
because +句子；
as 作为；介词 ； 因为是连词 后面接句子
as for 关于 意思不对