Question: The RNA Polymerase I of eukaryotes transcribes the genes of: 
 Options:  <1> The precursors of mRNAs. <2> The precursors of the TRANs. <3> The ribosomal RNAs 18S, 5,8S and 28S. <4> All precursors of cellular RNAs. <5> The catalytic RNAs.
3