ENT Nasopharyngeal carcinoma causes deafness by -a) Blocking the Eustachian tubeb) Serous otitis mediac) Temporal bone metastasisd) Radiation A ab B a C ad D bc 💡 Explanation Nasopharyngeal carcinoma causes deafness by -a) Blocking the Eustachian tubeb) Serous otitis mediac) Temporal bone metastasisd) Radiation ✓ Correct Answer: A. ab