According to the Supreme Court's Decision in Whren V

According to the Supreme Court's decision in Whren v.U.S,concerning the use of a pretext arrest in a drug search:

A) pretext arrests violate the Fourth Amendment.
B) courts should use a "balancing" test to decide the constitutionality of auto stops.
C) a search incident to a lawful arrest for a traffic violation is a reasonable Fourth Amendment search.
D) pretext stops and searches incident to them should be kept at a minimum.