Which One of the Following Statements Is INCORRECT

Which one of the following statements is INCORRECT?

A) Constitutional protections against unreasonable searches and seizures are not violated by police who make warrantless entries and searches when the police have a reasonable basis to believe that an occupant within a house is in immediate need of aid.
B) Police who seek to conduct a warrantless search must first advise a person that he or she has the right to refuse to consent to such a search.
C) The U.S. Supreme Court has ruled that the Fourth Amendment does not restrict searches and seizures conducted by United States agents of a nonresident's property located in a foreign country.
D) Courts often excuse compliance with the "knock and announce" requirement when to require strict adherence would endanger the lives of the officers or provide an occasion for occupants to dispose of evidence.