Question

What do you call a political meeting of party members to select delegates to a national convention.

Answer 1

 the answer is C
It is called a caucus.
 you have wrongly spelt the word. not cause.

Answer 2

Answer:

I call it Cause.

Explanation:

The concept of this term is a closed meeting of a group of persons that belongs to the same political party to decide politics subjects.

When the cause starts the voters in attendance divide themselves into groups  according to the candidate they do support,