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
The cell-bodies of sympathetic preganglionic neurons are located in the 
Select and explain. 
A. Dorsal root ganglia, B. Sympathetic chain ganglia, C. Brain stem and spinal cord, D. Thoracic and Lumbar segments of the spinal cord
D: Thoracic and Lumbar segments of the spinal cord
Answer: D: Thoracic and Lumbar segments of the spinal cord 
Explanation: None