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
Which of the following do not enter abdominal cavity from thoracic cavity at the level of T12 vertebra through an opening in the diaphragm? 
Select and explain. 
A. Right phrenic Nerve, B. Aorta, C. Azygos vein, D. Thoracic duct
A: Right phrenic Nerve
Answer: A: Right phrenic Nerve 
Explanation: Right phrenic Nerve enters abdominal cavity along with inferior venacava at the level of T8 vertebra.