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
Special visceral efferent fibres for muscles located in which nuclie: 
Select and explain. 
A. Lacrimatory nucleus, B. Motor nucleus, C. Nucleus of tractus solitarus, D. Nucleus ambiguous
B: Motor nucleus
Answer: B: Motor nucleus 
Explanation: None