The Symptom of Numbness of the Palmar Region Often Associated

The symptom of numbness of the palmar region often associated with carpal tunnel syndrome is caused by

A) compartmentalization of flexor and extensor muscles.
B) ischemia from pinching off the superficial palmar arch.
C) compression of the median nerve within the carpal tunnel.
D) compression of the long extensor muscles of the hand.
E) None of the answers are correct.