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: Dental
Efferent , Neuromodulatory , post ganglionic sympathetic nerve fibers of the pulp arise from 
Select and explain. 
A. Superior cervical Ganglion, B. Nervous intermedius, C. Otic ganglion, D. Mandibular nerve
A: Superior cervical Ganglion
Answer: A: Superior cervical Ganglion 
Explanation: None