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
What lies anterior to transverse sinus - 
Select and explain. 
A. Aorta, B. Pulmonary artery, C. IVC, D. SVC
A: Aorta
Answer: A: Aorta 
Explanation: Relation of transverse sinus
-        Anterior- Ascending aorta, pulmonary trunk
-        Posterior- Superior vena cava, atria
-        Above- Bifurcation of pulmonary trunk
-        Below- Upper surface of left atrium