This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Etiological Factors of Neoplasia, Subject name: Pathology
High risk HPV types are: 
Select and explain. 
A. 16 and 18, B. 6 and 11, C. 42 and 44, D. 70 and 72
A: 16 and 18
Answer: A: 16 and 18 
Explanation: Risk Classification HPV Types Lesions Low risk 6, 11, 42, 43, 44, 54, 61, 70, 72, 81 Condyloma, LSIL High risk 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 61, 66, 68, 73, 82 LSIL, HSIL, carcinoma Abbretions: HSIL - high grade intraepithelial lesion LSIL-low grade squamous intraepithelial lesion