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: Microbiology
Most common tumor caused by virus is: 
Select and explain. 
A. Was, B. Carcinoma cervix, C. Nasopharyngeal carcinoma, D. Lymphoma
A: Was
Answer: A: Was 
Explanation: Ans. (a) Was' f. Harrison I - n 1117-1118, 18/e, p 1482 Disease Associated human papilloma viruses Common was (Verruca vulgaris) Condyloma accuminatum (Anogenital was) 16, 18, 31, 33, 35, 39, 45 Cervical carcinoma 16, 18, 31, 33, 35, 39, 45 Laryngeal papillomas 6, 11 Low grade intraepithelial neoplasias 6, 11, 16, 18