The Baltimore Classification Scheme for Viruses Divides All Viruses into Seven

The Baltimore classification scheme for viruses divides all viruses into seven groups based on

A) their shape and host.
B) host and presence or absence of an envelope.
C) how they produce mRNA and replicate their genome.
D) their shape and presence or absence of an envelope.
E) their shape,host,and presence or absence of an envelope.