A few of the latency-associated transcripts (LATs)from herpes simplex virus have an unusual structure.Which of the following describes how they are unusual?

A) They are covalently closed circular RNA.
B) They have a high degree of secondary structure.
C) They have two separate open reading frames.
D) They represent a stable intron lariats.
E) They form double-stranded RNA with the ICP0 mRNA.