This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdomen and pelvis, Subject name: Anatomy
Which of the following level does the aoa pass through the diaphragm? 
Select and explain. 
A. T6, B. T8, C. T10, D. T12
D: T12
Answer: D: T12 
Explanation: The abdominal aoa begins in the midline at the aoic opening of the diaphragm, opposite the lower border of veebra T12. It runs downwards and slightly to the left in front of the lumbar veebrae, and ends in front of the lower pa of the body of veebra L4. Ref : B D Chaurasia's Human Anatomy , seventh edition , volume 2 , pg. no. 367