Please help this is for a test, will give brainliest. Im pretty sure its B but I want to make sure

A psychiatrist is seeing an elderly father and his daughter. The daughter tells the psychiatrist that he often talks to himself and commonly talks about various people he sees through out the day despite being home with his daughter all day.
The psychiatrist concludes that the father is suffering from a form of psychosis and prescribes him a Antipsychotic.
In a follow up appointment the daughter tell the psychiatrist that her fathers behavior has worsened. He started having intense panic attacks and was violent a few times.

What happened?

A. The psychiatrist gave the father a dosage that was too high for him. He should lower the dose and try again
B. The father actually suffers from dementia. He was prescribed the wrong type of medicine and worsened the condition.
C. The father wasn't prescribed a high enough dosage and his condition worsened naturally.
D. None. This is a normal side effect of Antipsychotics