I think it's the 3rd one. Might be wrong though.
Well, some people collect rocks, so you could write:
I have collected rocks from San Francisco, Washington, D.C., and Boston.
The central claim for the argument is known as the thesis.
Your answer would prolly be C.Climax
They would react astonished most likely, they don't know what to expect. Yet this is very true most will deny it.