Nathan wants to be sure that, in the event that he is incapable of communicating, no life support will be used, even if doctors want to keep him alive. he also wants to give his wife the legal right to speak for him in that situation. in order to do all this with one document, nathan should complete a(n):
a. living will.
b. healthcare durable power of attorney.
c. eeg.
d. survey of near-death experience