Read the paragraph. After breakfast, she and her family piled into their minivan and headed to school where graduation went off without a hitch. Elianna's stomach flipped as the principal called her name and she accepted her diploma as her parents waved and smiled at her from the audience.

How does saying that Elianna's "stomach flipped" help the reader understand how she is feeling?

A. It helps the reader understand how nervous and excited she feels.

B. It helps the reader understand how sick to her stomach she feels.

C. It helps the reader understand how hungry she feels.

D. It helps the reader understand how anxious she feels wondering what her parents' graduation gift will be.