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
Froment's sign is characteristically seen in - 
Select and explain. 
A. Ulnar nerve injury, B. Median nerve injury, C. Radial nerve injury, D. Intercostobrachial nerve injury
A: Ulnar nerve injury
Answer: A: Ulnar nerve injury 
Explanation: Ans. is 'a' i.e., Ulnar nerve injury o Repeat from All India Dec-15