A66-year-old male presents with bizarre behavior. his daughter states that he did not seem to recognize her and was very rude to her. the patient is conscious, and has a patent airway and adequate breathing. you should: select one:

a. advise the patient that his behavior is unacceptable.

b. ask the daughter how her father normally behaves.

c. conclude that the patient has alzheimer's disease.

d. carefully restrain the patient and transport at once.