Alan and Loretta have been married for 25 years. They have two children, aged 22 and 16, and live in a large home just west of Toronto. Last month, they told their children that they were separating. Because of the high cost of rent, Alan decided to move into the spare bedroom of the matrimonial home. He made this move on January 28th, 2022. On February 15, 2022, Alan suffered a serious stroke. Decisions need to be made regarding Alan's care. Alan and Loretta named each other as their attorney for personal care in 2010 and have not updated the document since. Now that Alan and Loretta are divorced, who is legally authorized to make decisions regarding Alan's personal care?

a. Loretta

b. The Ontario Public Guardian and Trustee

c. Alan and Loretta's adult son

d. Alan's elderly parents