44.下列何者起自第五頸神經根(CS root)，且在頸部經常穿過中斜角肌 (middle scalene muscle)後支配肩胛提肌(levator scapulae muscle)？ (A)肩胛上神經( Suprascapular nerve)(B)胸長神經(long thoracic nerve)(C)背肩胛神經(dorsal scapular nerve) (D)鎖骨下肌神經(nerve to subclavius)