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: Anatomy
Supination in flexed elbow is produced by ? 
Select and explain. 
A. Supinator, B. Biceps, C. Coracobrachialis, D. Brachialis
B: Biceps
Answer: B: Biceps 
Explanation: Ans. B. Biceps