If a Motorcycle Cop Believes That Young Female Drivers Speed

If a motorcycle cop believes that young female drivers speed more than other drivers,he will likely notice young female drivers speeding in the fast lane but fail to notice young male or older drivers doing the same.In this case,the police officer's judgments are biased by the operation of the

A) permission schema.
B) confirmation bias.
C) falsification principle.
D) typicality principle.