THE BOY IS VERY NICE. I KNOW HIM FROM SCHOOL.A. THE BOY WHICH I KNO...

2. The boy is very nice. I know him from school.

A. The boy which I know from school is very nice. B. The boy whose I know from school is very nice.

C. The boy whom I know from school is very nice. D. The boy whom I know him from school is very nice.