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
Root value of biceps jerk - 
Select and explain. 
A. C3 C4, B. C4 C5, C. C5 C6, D. C8 T1
C: C5 C6
Answer: C: C5 C6 
Explanation: Ans. is 'c' i.e., C5 C6o Repeat from previous sessions