This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
On the basis of histologic features, Internal thoracic artery is 
Select and explain. 
A. Medium sized arksey, B. Small sized artery, C. Large sized artery, D. Capillary
C: Large sized artery
Answer: C: Large sized artery 
Explanation: Internal thoracic artery is a medium sized artery with histological features of Large sized artery