A researcher, studying two different viruses (A and B) that infect the same cell type, digests away all the protein and transfers the nucleic acid directly into the host cell. Only virus B causes the infection. This suggests:
a) Virus A is likely to be a naked virus
b) Virus A is likely to be an enveloped virus
c) Virus A is likely to be a -ssRNA virus
d) Virus A is likely to be a +ssRNA virus
e) Virus A is likely to be a dsDNA virus