Answer: D) some have RNA genomes
Explanation:
Animal viruses are produced by RNA genome inside the protein shell which are known as capsid. And some of the viruses are outer membrane envelope.
Animal viruses are the tiny package of the protein and the nucleic acid. And it contain the proteins shell and the material of genetic are made up of some RNA inside the capsid. The animal virus are consist of RNA genomes that are single or double stranded.