Question

Which simple sentence has a compound subject? A. They will bring the camper with three beds. B. My aunts, uncles, and cousins are traveling on vacation with us. C. The rest of us will sleep in tents and cabins. D. We are leaving on July 15.

Answer 1

B. My aunts, uncles, and cousins are traveling on vacation with us.
Now the reason for this is because a compound subject includes WHO. In this example, my aunts, uncle and cousins.
The rest are all simple subjects. 

Answer 2

b I think hope that helped in a way!!