The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following does not cause head and neck squamous cell carcinoma   (A) Alcohol   (B) Betel nut   (C) HPV   (D) EBV
['(D) EBV <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Alcohol \n (B) Betel nut \n (C) HPV \n (D) EBV <> possible answers', '  Which of the following does not cause head and neck squamous cell carcinoma <> context@']