Which of the following is not used for giving advice?

A. You had better not watch a horror film since you get scared easily.

B. You mustn’t give your goldfish too much food.

C. The swimming pool isn’t open today. I don’t know where to go swimming.

D. Perhaps you should buy some souvenirs for your parents.

Which of the following is not used for giving advice? 

A. You had better not watch a horror film since you get scared easily.

B. Why not buy some souvenirs for your parents? 

C. The swimming pool isn’t open today. I don’t know where to go swimming.

D. Perhaps you should not give your goldfish too much food.