Proteins Made by a Ribosome Reading Through a Transcript's Stop

Proteins made by a ribosome reading through a transcript's stop codon without their own discrete ribosome binding sites

A) are thought to be a primitive mechanism to avoid host defenses.
B) appear most abundant in archaeal viruses and relatively uncommon in bacteriophage.
C) suggest a relatively low level of protein product is essential for the virus due to its rare frequency.
D) create opportunities for viruses to make different capsid proteins.