The Supreme Court in Goldman V

The Supreme Court in Goldman v. United States (1942) involving the use of detectaphone by law enforcement officers held that there was no search because

A) The officers did not physically intrude on the defendant's office when they placed the wiretap with electronic devices.
B) The officers did not physically intrude on the defendant's office when they held the detectaphone against the defendant's office walls while they were in the adjoining vacant office.
C) The defendants did not have any reasonable expectation of privacy in the contents of their conversations.
D) The defendants did not have any objective expectation of privacy in areas outside their office.