How does the author introduce the main idea of the article?

A.

The author uses a modern day example to show that allegories are popular today.

B.

The author summarizes an allegory to make readers familiar with the genre's purpose.

C.

The author explains how allegories were invented to give readers background information.

D.

The author describes Plato and his philosophical values to help readers understand his writing style.

pur-new-sol