Pertaining to Searches of Student Belongings by University Officials And/or

Pertaining to searches of student belongings by university officials and/or police,which of the following statements is true?

A) Police cannot legally gain access to a student's living quarters for the purpose of searching, even if they have permission of university administration, unless they have a warrant issued.
B) The Fourth Amendment protects students at private universities and colleges from searches conducted by school officials.
C) The Fourth Amendment does not protect students at public universities and colleges from searches conducted by school officials.
D) Students at public and private universities have no expectation of privacy.