This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Unilateral sensorineural hearing loss may occur in \nSelect and explain. \nA. Coronavirus, B. Mumps, C. Peussis, D. Rotavirus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Mumps(epidemic parotitis) may result in a profound sensorineural hearing loss (90 dB or more), unilaterally (one ear) or bilaterally (both ears). Coronavirus and Rotavirus are associated with diarrhoea. (Ref: Diseases of EAR, NOSE AND THROAT by PL DHINGRA - 6th Edition, Microbiology - Anantanarayanan)', 'role': 'assistant'}]