A patient asks the nurse. "I already signed advanced directives, why should I also have a durable power of attorney for health care?" The nurse should provide which of the following answers about durable power of attorney?

It gives your agent the authority to make health care decisions if you are unable to during an illness.

It can be used only if you have a terminal illness and become incapacitated.

It authorizes your physician to make decisions about your care that are in your best interest

It can be given only to a relative, usually the next of kin, who has your best interests at heart.