According to the Supreme Court in Michigan V

Multiple Choice

According to the Supreme Court in Michigan v.Sitz,involving sobriety checkpoints,detaining a car briefly at a sobriety check point:

A) is not a stop.
B) is a stop,but it is not covered by the Fourth Amendment.
C) is a stop to which the Fourth Amendment applies.
D) requires probable cause to think that someone in the car has committed a crime.