Question

A conclusion is
A. Provides additional information about the essays central point
B. Provides details for the main idea of an essay
C. Provides another supporting paragraph for the essay.
D. Provides a summary of the main idea of an essay

Answer 1

A conclusion is the last part of something, its end or result. 

Answer 2

I believe it's "D. Provides a summary of the main idea of an essay"