The selection of the vice presidential nominee at the national convention is based on:

Question

A.the results of the primaries and caucuses: The candidate who places second in these contests is nominated as the running-mate of the candidate who finishes first.

B.the presidential nominee's choice of a running mate.

I thank it is (A)

Answer 1

Nope.

Answer 2

is it B

Answer 3

So it's (B)