Which sentence has a dangling modifier? walking to the movies, the thunderstorm drenched cody. walking to the movies, cody was drenched by seven storm. as cody walk to the movies, he was drenched by a thunderstorm. as cody walk to the movies, of sudden storm drenched him.

The correct answer is A. Walking to the movies, the thunderstorm drenched Cody.
A dangling modifier refers to a phrase which is located in a wrong part of a sentence - that way, it either doesn't refer to anything at all, or it refers to the wrong word. The way sentence A is written, it would seem that the modifier walking to the movies refers to the thunderstorm rather than Cody. 

I'm not going to make it tonight and