Which of the Following Is True Regarding Living Wills

Which of the following is true regarding living wills?

A) The United States Supreme Court has acknowledged that the right to refuse medical treatment is a personal liberty interest protected by the Due Process Clause of the United States Constitution.
B) A living will may not specify which life-saving measures an individual does not want.
C) The desire to refuse medical treatment must be shown by a preponderance of the evidence in the living will.
D) A living will should not designate anyone to make health care decision for the maker.
E) The United States Supreme Court has not addressed the issue of whether living wills may be valid.