Why does Jamie feel like she is about to get sick?

This question is incomplete. Here's the complete question.

Read the excerpt from "i'm not thirteen yet" by amy bernstein.

three weeks later, i reluctantly boarded the bus with all the other shenandoah-bound kids. just before i stepped on, margaret's mother and mine asked to take a picture of the two of us. i wanted to throw up, but smiled graciously as the camera flashed and our moms grinned.

why does jamie feel like she is about to get sick?

a. because she does not like summer camp.

b. because she dislikes having her picture taken.

c. because she and margaret are not friends.

d. because the flash from the cameras hurts her eyes.

c. because she and margaret are not friends.

Explanation:

Jamie is sent for two weeks to summer camp with Margaret, who is part of the “Thirteens” club to which Jamie does not belong. Since Jamie´s best friend, Lynette, has left her to hang out with the other thirteen-year-old girls, Jamie feels left out and resents Margaret from the start. However, that will change when Margaret starts reaching out to Jamie.

may i you with anything?