Final answer:
Hepatitis-B virus (HBV) is associated with liver cancer (L), human immunodeficiency virus (HIV) with Kaposi's sarcoma (K), human papillomavirus (HPV) with cervical cancer (C), and Helicobacter pylori with stomach cancer (S).
Step-by-step explanation:
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):
Hepatitis-B virus (HBV) is mostly associated with liver cancer. The human immunodeficiency virus (HIV) is associated with Kaposi's sarcoma, a type of cancer that often affects those with immune systems compromised by HIV/AIDS. Human papillomavirus (HPV) is well-known for its relationship to cervical cancer. Lastly, Helicobacter pylori, which is a bacterium and not a virus, is closely associated with stomach cancer. Vaccination against HPV and HBV can help prevent these types of cancer by stimulating the immune response.