What is the difference between theme and central idea?

A) theme is the overarching
message of a text, central idea is the main idea of paragraph.

B)there is no difference between the two.

C) theme is the overarching message of a nonfiction work and central idea is the overarching message in a fictional text.

D) theme is the overarching message of a fictional piece of work and central idea is the overarching message in a nonfiction work.