Which argument supports the idea that viruses are alive?
a. viruses have a cell membrane.
b. viruses contain unique genetic information..
c. viruses replicate in a host.
d. viruses do not produce proteins.

The argument that supports the idea that viruses are alive is that B. viruses contain unique genetic information, just like humans do.
Having a cell membrane doesn't necessarily make the organism alive. Not producing proteins also doesn't mean that an organism is alive, because living things do produce protein. Viruses themselves don't replicate, they get into a host and command them to replicate with viruses inside.

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.