An Officer Suspects That Mary Is Selling Drugs Out of Her

An officer suspects that Mary is selling drugs out of her apartment.When the officer knocks on the door, Mary's roommate answers the door, and the officer requests permission to search the apartment.In which of the following circumstances would the search be considered a violation of Mary's Fourth Amendment right protecting against unreasonable searches and seizures?

A) Mary's roommate gives consent, but Mary immediately comes to the door and refuses permission.The officer searches the house anyway.
B) Mary's roommate tells the officer that Mary is at work, and refuses permission for the officer to search.Because Mary isn't present, the officer searches the apartment anyway.
C) Mary's roommate tells the officer that Mary is at her parents' house, and gives him permission to search the apartment.
D) Mary's roommate tells the officer that it is ok to search the apartment, and although Mary does not want the officer to search, she does not protest because she is afraid she will look guilty.