The answer is b) false.
While it is true that archaea are prokaryotic organisms, they do not have peptidoglycan in their cell walls. Instead, archaea typically have cell walls made of other substances, such as pseudopeptidoglycan, polysaccharides, or proteins. Peptidoglycan is primarily found in the cell walls of bacteria, which distinguishes them from archaea. Therefore, the statement is incorrect regarding the presence of peptidoglycan in archaeal cell walls.