Which sentence is correct?

A. Will’s blue jeans, which his mom had bought for him a week ago, already have a hole in them.

B. Will’s blue jeans, who his mom had bought for him a week ago, already have a hole in them.

C. Will’s blue jeans, where his mom had bought for him a week ago, already have a hole in them.

D. Will’s blue jeans, that his mom had bought for him a week ago, already have a hole in them.