Which of These Observations BEST Supports the Hypothesis That Peptidoglycan

Which of these observations BEST supports the hypothesis that peptidoglycan in Bacteria and pseudopeptidoglycan in Archaea evolved convergently?

A) NAG is found in glycan strands of both molecules
B) L isomer amino acids are seen in peptide bridges in both molecules
C) The glycosidic bond linkages are different
D) D isomer amino acids are found in peptide bridges in peptidoglycan
E) The physical strength of each cell wall is equivalent