The last one is the answer
Since the climax is when the turning point of the story happens and makes a choice to solve the conflict I think that it is B
The detective looks for clues about who the thief might be! Sorry if I am wrong but I am confident this is the answer.
I think its an Idiom. I don't see like or as. So no simile. I don't see he is something like a marshmallow. - No metaphor. I also don't see a non-human thing doing human things- the grass was dancing in the wind. My answer would be an idiom.
Hope this helps!
A, because it makes the most sense in this context.
