Some people lose their self-control. When their favorite team is playing.

What is the best way to combine the two sentences or clauses?

A.
Some people lose their self-control; when their favorite team is playing.
B.
Some people lose their self-control, and when their favorite team is playing.
C.
Some people lose their self-control when, their favorite team is playing.
D.
Some people lose their self-control when their favorite team is playing.