They are looking for the man and his dog. They have lost their way in the forest.

A. They are looking for the man and his dog which have lost their way in the forest.

B. They are looking for the man and his dog that have lost their way in the forest.

C. They are looking for the man and his dog who have lost their way in the forest.

D. They are looking for the man and his dog what have lost their way in the forest.

Luyện tập mệnh đề quan hệ (2)