This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sedative-Hypnotics and Parkinsonism, Subject name: Pharmacology
What is the most effective treatment in levodopa-induced psychosis? 
Select and explain. 
A. Quetiapine, B. Chlorpromazine, C. Trifluoperazine, D. Haloperidol
A: Quetiapine
Answer: A: Quetiapine 
Explanation: Levodopa induced psychosis Hallucinations,confusion in elderly patients Rx - Conventional antipsychotic agents (Phenothiazines) but worsens Parkinsonism , so not recommended Atypical" antipsychotic agents(Clozapine ,Quetiapine)