In a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many students do not like banana peppers on their pizza.

A. 20
B. 34
C. 31
D. 35
I think its C but I'm not sure.
Can someone please explain how I can work this out.
I re posted this because I really need help.