Andy, Bruce and Colin are their mother's joint powers of attorney for personal care and she has become incapable of making personal care decisions. The mother's next closest relative is her younger sister, Violet, a physician. Andy disagrees with Bruce and Colin on whether their mother should be treated. In these circumstances, who would have legal authority to make treatment decisions on the mother's behalf?

• A. Bruce and Colin
• B. Violet
• C. The Office of the Public Guardian and Trustee
• D. The Consent and Capacity Board