Because of {cause}, {effect} happened.
If {cause}, then {effect}.
Answer:
However you like in a creative way with being figurative.
Explanation:
A metaphor is just comparing things without like or as. Try to think creatively how you should compare something with anxiety.
I think that it is B because the test can't break into a sweat
I think either excited or confused. Since the first sentence is well, with an exclamation point, I guess I would lean towards excited. It would help to know more of the story.