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
Thoracic Sympathetic Chain is situated : 
Select and explain. 
A. In front of posterior mediastinum, B. Passes superficial to medial arcuate ligament, C. Near heads of 2nd to 10th rib, D. In front of veebral column
C: Near heads of 2nd to 10th rib
Answer: C: Near heads of 2nd to 10th rib 
Explanation: C. i.e. Near heads of 2nd to 10th rib Thoracic sympathetic trunk is a ganglionated chain situated on each side of thoracic veebraQ and crosses the neck of 1st rib, heads of 2" to 10th ribs and bodies of 11th & 12th rib.Q The whole chain descends in front of posterior intercostal vessels & intercostal nervesQ, and passes deep to medial arcuate ligament.Q