Which phrase from the paragraph best helps the reader understand the meaning of the underlined sentence?

Della is always telling people stories about things that have happened to her. People think she leads an exciting life, but then they realize that Della elaborates most of what she tells them. Her friend Jean asked her if one of her stories was really true, and Della told her it was. But Jean knows that Della can’t change who she is. “The leopard cannot change its spots,” she said.

A.
can't change who she is

B.
things that have happened to her

C.
leads an exciting life

D.
elaborates most of what she tells