Which of the following descriptions correctly identifies a main structural difference between viruses with envelopes and viruses without envelopes?

A) Only viruses with envelopes have their contents enclosed by a layer containing lipids
B) Only viruses with envelopes package their genetic material by engulfing it.
C) Only viruses without envelopes can release their genetic material into the cytoplasm of the host.
D) Only viruses without envelopes interact with receptor proteins on the surface of the host cell.