Define "Exigent Circumstance

Define "exigent circumstance."

A) a situation that requires urgent action, sufficient to excuse a delay in obtaining a warrant.
B) a situation in which a police officer violates a general rule or standard
C) a situation in which a criminal violates general rules or standards
D) an extraordinary circumstance that cannot be explained by the normal rules of physics
E) a circumstance in which a police officer is in hot pursuit of a burglar caught in the act