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
[{'content': 'The muscle that crosses both shoulder and elbow joint - \nSelect and explain. \nA. Coracobrachialis, B. Medial head of triceps, C. Biceps brachii, D. Brachialis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]