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: ENT
Parasympathetic secretomotor fibers to paranasal sinus 
Select and explain. 
A. Otic ganglion, B. Pterygopalatine ganglion, C. Ciliary ganglion, D. Spiral ganglion
B: Pterygopalatine ganglion
Answer: B: Pterygopalatine ganglion 
Explanation: None