This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Ropinirole is the most useful for the treatment of ? 
Select and explain. 
A. Parkinson's disease, B. Wilson's disease, C. Hoffman's syndrome, D. Carpal tunnel syndrome
A: Parkinson's disease
Answer: A: Parkinson's disease 
Explanation: Ans. is 'a' i.e., Parkinson's disease o Ropinirole is a recently developed non-ergot, selective D/D3 receptor agonist with negligible activity for D, and nondopaminergic receptor.