Which Statement Accurately Describes the Function of a Durable Power

Which statement accurately describes the function of a durable power of attorney for healthcare?

A) Document in which the client states the types of treatment desired to receive or not to receive if a terminal situation arises
B) Document which designates a person of the client's choice to make healthcare decisions should the client become incompetent
C) Document that informs healthcare personnel that if the person experiences cardiopulmonary arrest, a "code blue" should not be called
D) Document in which healthcare personnel are informed not to start tube feeding and to keep the client as comfortable as possible