An Officer Makes a Valid Traffic Stop and Issues a Valid

An officer makes a valid traffic stop and issues a valid ticket (citation) for the traffic violation.The officer has no additional information about criminal activity,and without permission from the driver,the officer searches the vehicle.Under the Fourth Amendment,this search is:

A) a lawful version of a search incident to a lawful arrest.
B) invalid because vehicle searches require warrants.
C) invalid because there is neither probable cause nor consent.
D) valid because there is a risk to officer safety.