You Are Attempting to Determine Which Step of Prokaryotic Translation

You are attempting to determine which step of prokaryotic translation a new antibiotic inhibits.You have determined that the antibiotic interacts with a translational factor but need to identify which one.If the new antibiotic interferes with elongation,which of the following factors could be a potential site of action?

A) IF3 interaction with an aminoacyl tRNA
B) EF-Tu placement of N-formylmethionine onto the ribosome
C) EF-Tu interaction with an aminoacyl tRNA
D) EF-Ts translocation of tRNAs from the A site to the P site
E) All of these could be potential sites of action.