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
Chorda tympani contain: 
Select and explain. 
A. Preganglionic sympathetic fibres, B. Preganglionic parasympathetic fibres, C. Postganglionic sympathetic fibres, D. Postganglionic parasympathetic fibres
B: Preganglionic parasympathetic fibres
Answer: B: Preganglionic parasympathetic fibres 
Explanation: None