This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': "Citelli's angle is \nSelect and explain. \nA. Solid angle, B. CP angle, C. Sinodural angle, D. Pa of Mac Ewan's triangle", 'role': 'user'}, {'content': "Answer: C \nExplanation: Sinudural angle, also called Citelli's angle, is situated between the sigmoid sinus and middle cranial fossa dural plate. Solid angle is the area where three bony semicircular canal meet.", 'role': 'assistant'}]