According to the Supreme Court, a Police Officer Is Permitted

According to the Supreme Court, a police officer is permitted to use drug sniffing dogs during a routine stop for a traffic violation:

A) because the driver of the car does not have a reasonable expectation of privacy while lawfully stopped.
B) only if the officer can establish probable cause that the drive has contraband in the car.
C) only if the officer has probable cause and a search warrant.
D) only if the driver has consented to the search.