Question

What term refers to people who believe in more than one god? A. theologists B. monotheists C. atheists D. polytheists

Answer 1

The term that refers to someone who believes in more than one god is a polytheist, a monotheist believes in one god

Answer 2

Atheists are people who believe that there is no god. So it's not C.
Monotheists are people who believe in 1 god. Mono means 1. So not B.
A theologist is a person who studies theology. So not A.
Poly means many, or a lot. And a polytheist has 2 or more gods. So D would fit your bill.