This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Physiology
Root value of ankle jerk - 
Select and explain. 
A. L3L4, B. L4L5, C. S1S2, D. S}S4
C: S1S2
Answer: C: S1S2 
Explanation: Ans. is 'C1 i.e., S|S2 Deep tendon reflexRoot valueBiceps JerkC3C6Supinator reflex (Brachioradialis)C5C6Triceps JerkC7C8Knee JerkL3L4Ankle JerkS1S2