This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax, Subject name: Anatomy
The coronary sinus 
Select and explain. 
A. Lies in anterior pa of the coronary sulcus, B. Ends in right atrium, C. Has venae cordis minimae as its tributaries, D. Develops from right anterior cardinal vein
B: Ends in right atrium
Answer: B: Ends in right atrium 
Explanation: Coronary Sinus is the largest vein of hea.it ends by opening to posterior of Right atrium. <img src=" /> BD CHAURASIA'S HUMAN ANATOMY,VOL:1,6TH EDITION,PAGE NO:266