Plants Launch a Successful Defense Against Infection from RNA Viruses

Plants launch a successful defense against infection from RNA viruses by

A) converting some double-stranded viral RNA into single-stranded copies.
B) using siRNAs to disrupt viral replication.
C) converting some single-stranded viral RNA into double-stranded DNA.
D) converting the message in the viral RNA into proteins.
E) converting viral RNA into DNA/RNA hybrids.