The police entered a neighborhood suffering from increased illegal drug activity, accompanied by a dog trained to sniff out cocaine. The police entered the backyard of a home and brought the dog to an area immediately outside the back door. The dog acted as if it smelled cocaine. The officers knocked on the back door and a man answered the door and let them in. He was immediately placed under arrest. After a brief search, the police officers found and confiscated a small quantity of cocaine from the bedroom closet. The man is charged with possession of cocaine. At trial, he moves to prevent introduction of the cocaine into evidence. This motion will most probably be:
(A) Granted, because, under the circumstances, the police activity violated the man's reasonable expectation of privacy.
(B) Granted, because this kind of detection by a trained dog has not been scientifically verified and cannot be the basis for probable cause.
(C) Denied, because the man allowed the police officers to enter his home.
(D) Denied, because the search was incident to a valid arrest.