A patient with Alzheimer disease attends with his wife, who is his court-appointed legal guardian. She may do all of the following EXCEPT:

Correct answer: B. Be held personally responsible for the cost of his treatment

• A. ❌ Acting in the ward's health interests, including oral health, is precisely the guardian's duty.
• B. ✅ CORRECT — This is the EXCEPTION. Legal guardianship confers DECISION-MAKING authority over the person's care; it does not automatically make the guardian personally liable for the bill. Financial responsibility rests with the patient's own estate or assets unless the guardian separately signs as a financially responsible party.
• C. ❌ Authorizing denture identification marking is a routine care decision within the guardian's authority.
• D. ❌ Consenting to treatment is the guardian's central function.