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: Pathology
[{'content': 'Features of trigeminal neuralgia do not include \nSelect and explain. \nA. Paresthesia, B. Paroxysmal pain, C. Refractory period, D. Presence of trigger zone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Trigeminal neuralgia is an archetype of orofacial neuralgias that follows the anatomic distribution of fifth nerve that exhibits a trigger zone, stimulation of which initiates a paroxysm of pain. It is characterised by paroxysmal, excruciating pain in trigeminal dermatornes. Latency (refers to the short time period between stimulation of a trigger area and pain onset) and refractory period (occurs following an attack and during this time pain may not be initiated) are other 2 attack related phenomena related to TN.', 'role': 'assistant'}]