This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper Extremity, Subject name: Anatomy
[{'content': 'Which muscle is inserted on arrow marked area: \nSelect and explain. \nA. Brachialis, B. Triceps, C. Biceps, D. Pronator teres', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. BicepsThe arrow marked area is radial tuberosity of radius. The biceps brachii is inserted on this landmark.', 'role': 'assistant'}]