One Element of an Informed Consent Is That

One element of an informed consent is that:

A) anyone related to the patient may sign,giving the patient's consent.
B) a telephone consent may be considered legal as an informed consent as long as at least one hospital employee has heard the verbal consent given after the procedure,and its risks have been explained.
C) the person who is appropriate to sign has been informed of the procedure and its risks and understands them.
D) the doctor has carefully reviewed the procedure with the patient's nurse,who is prepared to care for the patient postoperatively.