The 3rd one
but he should also jot down a list of questions he intends to ask during each call and should be writing down the responses he receives as well as any follow up numbers etc that he needs to call <span />
A is the answer. This is because this was not covered by the Twin studies.
Good luck!
-RxL
You have two apples, you pick one off the tree, drop it, than drop two more. How many apples do you have George?
