This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Triangles of Neck, Subject name: Anatomy
Which structure can be felt at the lower part of the medial border of stemocleidomastoid:- 
Select and explain. 
A. subclavian artery, B. Common carotid artery, C. Internal mammary artery, D. Maxillary artery
B: Common carotid artery
Answer: B: Common carotid artery 
Explanation: Ans. is 'b' i.e. Common carotid artery