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
Wrist drop is due Which Palsy? 
Select and explain. 
A. Radial nerve palsy, B. Posterior Interossues berve injury, C. Ulnar nerve palsy, D. Carpal Tunnel Syndrome
A: Radial nerve palsy
Answer: A: Radial nerve palsy 
Explanation: Ans. is 'a' i.e., Radial nerve palsy Effects of nerve palsyFeatureNerve injuredWrist dropRadial nerveFoot DropCommon peroneal nerveClaw handUlnar nerveApe thumbMedian nerve