Which of the Following Statements Comparing Flaviviruses with Picornaviruses Is

Which of the following statements comparing flaviviruses with picornaviruses is FALSE?

A) They both use an IRES to initiation translation of the viral genome.
B) They both have enveloped virions
C) They both encode the structural proteins at the 5' end of the genome.
D) They both produce their proteins from a single open-reading frame.
E) They both produce viral proteases to cleave the polyprotein.