This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Back, Deltoid, and Scapular Region, Subject name: Anatomy
Which nerve is involved? 
Select and explain. 
A. Long thoracic Nerve, B. Musculocutaneous nerve, C. Lateral anterior thoracic nerve, D. Thoracodorsal nerve
A: Long thoracic Nerve
Answer: A: Long thoracic Nerve 
Explanation: Ans. (a) Long Thoracic NerveNerve involvedMuscleLong thoracic NerveSerratus anteriorMusculocutaneous NerveCoracobrachialis muscleLateral anterior thoracic NervePectoralis major muscleThoracodorsal NerveLatissmus Dorsi