The NS2 protein from influenza can bind and inhibit cellular proteins involved in polyadenlyation of mRNAs.Why doesn't this affect the virus?

A) Influenza virus mRNAs don't have poly(A) tails.
B) Influenza virus uses a stuttering mechanism to add the poly(A) tail.
C) All of the viral mRNAs are polyadenylated before the NS2 protein is made.
D) Influenza virus encodes its own poly(A) polymerase that isn't affected by NS2.
E) The virus encodes the poly(A) tail in the genome.