According to the Textbook,which of the Following Is NOT One

Multiple Choice

According to the textbook,which of the following is NOT one of the exigent circumstances that exempt law enforcement officers from having to "knock and announce" their identity before entering a dwelling of an arrest warrant?

A) A felony is being committed at the time the officer enters
B) No one is home at the time of the execution of the warrant
C) Persons inside are destroying evidence
D) Suspect is armed and poses a strong threat