The Chang family went to see their friends, the Browns. “Where do they live?”, asked Mr. Chang. “They live on the fourth floor,” said Mrs. Chang. They took the elevator up to their friends’ floor.
Question: The main idea is “______________”
Select one:
a. The Chang went to the Browns’ home.
b. The Browns went out.
c. The Chang lived on the fourth floor.
d. The Browns took the elevator up.