A pole vaulter had a fall during pole vaulting and had paralysis of the arm.Which of the following investigations gives the best recovery prognosis:

A pole vaulter had a fall during pole vaulting and had paralysis of th

1.	A pole vaulter had a fall during pole vaulting and had paralysis of the arm.Which of the following investigations gives the best recovery prognosis:
A.	Electromyography
B.	Muscle biopsy
C.	Strength Duration Curve
D.	Creatine phosphokinase levels
Answer» B. Muscle biopsy