Political Parties: Crash Course Government and Politics #40

I just love crash course! Thanks 😙

@ Adam. As far as I understand, it is semi similar to the electoral college that they could potentially go against the public. Please correct me if I'm wrong. Primaries like we know it are a fairly new concept in American Politics.

Question: if a party has a candidate (A) who gets say 60% in the primary and a second candidate (B) who gets the other 40% in the primary, but the party electors thought B would be able to appeal to more moderate people not in the party for the general election because A was to radical. Would this party choose to elect person B to the general election since they would be more likely to win overall or would they choose person A who actually had more votes in the party?