This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: E.N.T., Subject name: Surgery
[{'content': 'CSF otorrhoea is caused by \nSelect and explain. \nA. Fracture of cribriform plate, B. Fractureof parietal bone, C. Fractureof petrous temporal bone, D. Fracture of tympanic membrane', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans is 'c' ie Fracture of petrous temporal boneC.S.F. otorrhea is seen in fracture (longitudinale) of temporal bone C.S.F. is seen in external and middle ears T/T -It usually ceases spontaneously surgical intervention is rarely needed. Antibiotics (Co-trimoxazole) is given as it us sensitive to bacter ious causing URTI and it can cross blood brain barrier.", 'role': 'assistant'}]