This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forearm, Subject name: Anatomy
Strongest supinator muscle is - 
Select and explain. 
A. Supinator, B. Biceps, C. Brachialis, D. Brachioradialis
B: Biceps
Answer: B: Biceps 
Explanation: Ans. is 'b' i.e., Biceps "The biceps brachii is the strongest supinator of the forearm because of its distal attachment on the radial tuberosity "MovementMuscles causing movementPronationPronator quadratus (strong pronator). Pronator teres (Rapid pronator).SupinationSupinator (when elbow is extended), Biceps (when elbow is flexed).