I have a passion for winter. It is usually a sad s...

Câu hỏi: I have a passion for winter. It is usually a sad season for many people.  

A. I have a passion for winter when is usually a sad season for many people.

B. I have a passion for winter, which is usually a sad season for many people.

C. I have a passion for winter, when is usually a sad season for many people.

D. I have a passion for winter which is usually a sad season for many people.