This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nerves of Upper Extremity, Subject name: Anatomy
[{'content': 'Short head of biceps is innervated by: \nSelect and explain. \nA. Musculo cutaneous nerve, B. Radial nerve, C. Axillary nerve, D. Median nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A Musculo cutaneous nerveRef: BDC, 6th ed. vol. I pg. 88* Short head of biceps comes under anterior compartment of arm. All the muscles of the anterior compartment of arm are innervated by musculo-cutaneous nerve.* Posterior compartment muscles are innervated by radial nerve.', 'role': 'assistant'}]