Choose the best answer.The church is over 500 year...

Câu hỏi: Choose the best answer.The church is over 500 years old. Our class visited it last summer.

A. The church which our class visited it last summer is over 500 years old.

B. The church that our class visited it last summer is over 500 years old.

C. The church which our class visited last summer is over 500 years old.

D. The church our class visit last summer is over 500 years old.