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: Medicine
A patient presents with recurrent episodes of sharp pain over his right cheek that is precipitated on chewing. Between attacks patients is otherwise normal.The most probable diagnosis is - 
Select and explain. 
A. Preherpetic neuralgia, B. Trigeminal neuralgia, C. Mumps, D. Thalamic syndrome
B: Trigeminal neuralgia
Answer: B: Trigeminal neuralgia 
Explanation: Answer- B. Trigeminal neuralgia