Question

Which sentence does not contain any errors in comma usage?

A.
Mom is someone, who knows how to ski well.

B.
Dad is the one, who can answer your question.

C.
Allan is walking with the man who wears Bermuda shorts in winter.

D.
Here is the boy, who will rake the leaves in our yard.

Answer 1

I think it is A

Answer 2

then it is D right?

Answer 3

C.

Answer 4

Thanks @AuroraShay and @englishfreaks