Which of the Following Is NOT an Exception to the Warrant

Which of the following is NOT an exception to the warrant requirement for a lawful search?

A) A search when the owner or a person who appears to have authority voluntarily and intelligently consents to the search
B) A search of a residence if there is probable cause to believe evidence of a crime will be found
C) Anything discovered by police in plain view if the officers are legitimately on the premises
D) A stop and frisk of a suspect if the officer reasonably believes the suspect is dangerous