It can be inferred from the passage that which of the following have recently been compare

d in order to clarify the fundamental classifications of living things？

A．The genetic coding in true bacteria and that in other prokaryotes

B．The organelle structures of archaebacteria, true bacteria, and eukaryotes

C．The cellular structures of multicellular organisms and unicellular organisms

D．The molecular sequences in eukaryotic RNA, true bacterial RNA, and archaebacterial RNA

E．The amino acid sequences in enzymes of various eukaryotic species and those of enzymes in archaebecterial species