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
All form right heart border EXCEPT? 
Select and explain. 
A. Right ventricle, B. IVC, C. Right atrium, D. SVC
A: Right ventricle
Answer: A: Right ventricle 
Explanation: BORDERS OF HEART
• Right border (slightly convex): formed by the right atrium, SVC, and the IVC.
• Left border (nearly horizontal): formed by the left ventricle and slightly by the left auricle.
• Inferior border (oblique, nearly vertical), formed mainly by the right ventricle and slightly by the left ventricle.
• Superior border: formed by the right and left atria and auricles in an anterior view