A Mouse "Freezes" When It Sees a Cat Nearby

A mouse "freezes" when it sees a cat nearby. This assists the mouse's survival because

A) being motionless reduces the attention-attracting effect of motion.
B) being motionless reduces the chance that the cat will see the mouse against the background.
C) being motionless reduces both the attention-attracting effect of motion, and the chance that the cat will see the mouse against the background.
D) none of these; "freezing" does not affect the cat's hunting ability.