Question

what do viruses have to do in order to replicate (make copies)?
mitosis
cell division
clone itself
infect a host cell
binary fission

Explanation:

Viruses are non - living entities that cannot replicate on their own. They must infect a host cell and use the host cell's machinery to replicate. Mitosis and cell division are processes of eukaryotic cells, cloning is a more general biological concept not specific to viral replication, and binary fission is a form of asexual reproduction in prokaryotes.

Answer:

infect a host cell