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: ENT
[{'content': 'Which of following is not an absolute contraindication of tympanoplasty? \nSelect and explain. \nA. Malignant otits externa, B. Tumor of middle ear, C. Poor eustachian tube function, D. Active ear discharge', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Poor eustachian tube function Absolute contraindications for tympanoplastyActive infectionMalignant otitis externaMiddle/external ear neoplasmsUncontrolled cholesteatomaMeningitisPoor Eustachian tube function is a relative contraindication.", 'role': 'assistant'}]