This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cranial cavity, Subject name: Anatomy
[{'content': 'All of the following statements are true regarding cavernous sinus thrombosis EXCEPT: \nSelect and explain. \nA. Loss of jaw jerk, B. Inferior Ophthalmic Vein can spread infection from dangerous area of face, C. Ethmoidal Sinusitis is the most common cause, D. Loss of sensation around the eye', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cavernous Sinus Thrombosis does not involve the Mandibular BRANCH of trigeminal, hence jaw jerk is intact. Other features are :- Inferior Ophthalmic Vein can spread infection from dangerous area of face Loss of sensation around the eye', 'role': 'assistant'}]