With no explanation, chose the best option from "A", "B", "C" or "D". to require a patient’s medical malpractice claims to be arbitrated. The black letter statement of California law in this regard is, ... an agent or other fiduciary who contracts for medical treatment on behalf of his beneficiary retains the authority to enter into an agreement providing for arbitration of claims for medical malpractice. Garrison v. Super. Ct, 132 Cal.App.4th 253, 33 Cal.Rptr.3d 350, 358 (2005) (internal quotation marks and citation omitted). Thus, under the law of California, agents with authority to admit their principals to medical facilities also had authority to sign arbitration agreements that were included in the admission paperwork as a related healthcare decision. See Hogan v. Country Villa Health Servs., 148 Cal.App.4th 259, 55 Cal. Rptr.3d 450, 453 (2007) (<HOLDING>). These cases support the view that an agent’s

A: holding that a healthcare power of attorney conferred by a resident to his wife explicitly limited the powers of the agent to those set out in writing in the document
B: holding that a healthcare power of attorney includes the authority to bind the principal to an optional arbitration agreement because among other reasons an agent has authority  to do everything necessary or proper and usual in the ordinary course of business for effecting the purpose of his agency and that the decision to enter into such agreements in connection with placement in a healthcare facility  is a proper and usual exercise of an agents powers internal quotation marks and citation omitted
C: holding a power of attorney allows a principal to convey to an agent the authority to act on its behalf in identified matters
D: holding that unless that power is restricted by the principal an agent under a california statutory healthcare power of attorney has the power to execute applicable admission forms including arbitration agreements
D.