This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
The major venous return of the hea, the coronary sinus, empties into 
Select and explain. 
A. IVC, B. Left atrium, C. Right atrium, D. Right ventricle
C: Right atrium
Answer: C: Right atrium 
Explanation: The coronary sinus empties directly into the right atrium (like IVC, SVC) near the conjunction of the posterior interventricular sulcus and the coronary sulcus.Reference: Chaurasia; 6th edition