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
Lower lateral cutaneous nerve of arm is a branch of - 
Select and explain. 
A. Radial nerve, B. Axillary nerve, C. Median nerve, D. Musculocutaneous nerve
A: Radial nerve
Answer: A: Radial nerve 
Explanation: Ans. is'a'i.e., Radial nerveUpper lateral cutaneous nerve of arm; Branch of axillary nerve.Lower lateral cutaneous nerve of arm + Branch ofradial nerve