"Why are you staring at the mirror?" asked Rangoni as he entered his twin sister Marey's room. She frowned in annoyance as he plopped down on her bed and started thumbing through her comic books.

"I am considering whether or not to get a haircut," Marey replied.
"Are you crazy?" Rangoni asked. "You have been growing out your hair since you were three. I thought you loved having long hair."
"I do love it," agreed Marey. "However, we are in a new state, in a new school, and in a new house. Everything is changing, so I might as well change, too." Rangoni stared thoughtfully out the window.
"I know how you feel," he said. "I am worried about fitting in at our new school. I thought I might sell my motorcycle and buy a used car. What if I am the only student at school with a motorcycle? I don't want to feel out of place."
"That is a ridiculous plan," exclaimed Marey. "You love your motorcycle more than anything! Uncle Vanya left it to you, and I know it has sentimental value. Who cares if none of your new friends have motorcycles? You don't have to throw away the past to embrace the future."
"I guess you're right," Rangoni admitted. "I suppose you'll keep your long hair, then?" Marey laughed and tugged on her long ponytail.
"Maybe I will, or maybe I won't," she told her brother. "I've always been better at giving advice than taking it."
Authors often include multiple themes in their writing. One theme expressed in this passage is
A.
new students are often bullied and harassed at school.
B.
change can cause people to question their identities.
C.
vanity can cause people to be insensitive to others' pain.
D.
family relationships are more important than anything.

B. change can cause people to question their identities.