Answer:
B
Step-by-step explanation:
A is not correct because it says "are" when it should say "is"
C is not correct because the same reason as A. It says "are" when it should say "is".
D. Is wrong for the same reason as the previous 2 answers.
While the correct answer uses the word "are", it is correct because the way it is used. If you say the sentences out loud it is easier to tell which is wrong. I hope this helps!