Campus Police at a State College Have Facts Leading Them

Campus police at a state college have facts leading them to believe that a college student has marijuana in her shared dorm room. They want to search her room without a warrant. What legal options do the officers' have?

A) they may search it with permission of the president.
B) they may search all areas of the room with permission of her roommate.
C) they may search it without anyone's permission.
D) they must obtain the suspect's permission.