This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
Most common agent responsible for Carcinoma Cervix is : 
Select and explain. 
A. HPV 16, B. HPV 18, C. HPV 31, D. HPV 35
A: HPV 16
Answer: A: HPV 16 
Explanation: HPV is the primary cause of cervical carinoma High risk strains: 16, 18, 33, 35, 48 Type 16 is highly oncogenic causing invasive cancer, CIN 1 and 2 Reference : Textbook of Gynaecology; Sheila balakrishnan; 2nd edition; Pg no: 297