It outside. You’d better take an umbrella with you.A.rains B.is raining C.rained

问题补充：

It outside. You’d better take an umbrella with you.

A.rains B.is raining C.rained

答案：

解析：根据文章内容You’d better take an umbrella with you，可知要用现在进行时，故选答案为B