Indicate Whether Each of the Following Viruses Is Mostly Associated

Short Answer

Indicate whether each of the following viruses is mostly associated with cervical cancer (C), Kaposi's sarcoma (K), liver cancer (L), or stomach cancer (S). Your answer would be a four-letter string composed of letters C, K, L, and S, e.g. CKLS.
( ) Hepatitis-B virus (HBV)
( ) Human immunodeficiency virus (HIV)
( ) Human papillomavirus (HPV)
( ) Helicobacter pylori