ENT Which of the following is not a cause of oropharyngeal carcinoma? A Occupational exposue to hydrochloric acid B Smoking C Human Papilloma Virus infection D Occupational exposure to isopropyl oil 💡 Explanation Which of the following is not a cause of oropharyngeal carcinoma? ✓ Correct Answer: A. Occupational exposue to hydrochloric acid