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
Which is a direct branch of arch of aoa? 
Select and explain. 
A. Right subclan aery, B. Right common carotid aery, C. Brachiocephalic trunk, D. Right coronary aery
C: Brachiocephalic trunk
Answer: C: Brachiocephalic trunk 
Explanation: This is indirect repeat from previous sessions. See explanation-6 of session-9.