Is this a real test question, or have you made it up? The word make is incorrect (it should be makes). And, frankly, the statement doesn’t make much sense anyway.
Thank you. Unfortunately, though, none of those answers is good English, in my view. Answers a and b are both possible, but it’s still not idiomatic with either of them.
Working in this hot weather made me [get] used to high temperature.
Working in this hot weather got me used to high temperatures.