Which of the Following Statement Best Describes the Emergency-Aid Doctrine

Which of the following statement best describes the emergency-aid doctrine?

A) The doctrine authorizes the warrantless entry into a home to provide emergency assistance to an injured occupant or to protect an occupant from imminent harm.
B) The test is whether the circumstances, when viewed objectively, justify the warrantless entry to render emergency assistance.
C) The test is whether the circumstances, when viewed subjectively, justify the warrantless entry to render emergency assistance.
D) Both a and b
E) Both a and c