This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
[{'content': 'The axillary aery is divided into three pas by \nSelect and explain. \nA. Pectoralis major, B. Pectoralis minor, C. Teres major, D. Teres minor', 'role': 'user'}, {'content': "Answer: B \nExplanation: Axillary aery is the continuation of the subclan aery. It extends from the outer border of the first rib to the lower border of the teres major muscle. It continues as the brachial aery. The pectoralis minor muscle crosses it and divides it into three pas. they are - (i) First pa, superior (proximal) to the muscle. (ii) Second pa, posterior (or deep) to the muscle. (iii) Third pa, inferior (distal) to the muscle. Ref : B D Chaurasi's Human Anatomy , seventh edition , volume 1 , pg. no., 50 ( fig. 4.6 )", 'role': 'assistant'}]