Help ASAP. My answers my or may not be right. It is deadly windows assignment

Which of the following matches the organisms described with the correct domain? a. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycanb. archaea--multicellular, eukaryotic organisms that do not have cell wallsc. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sourcesd. bacteria--unicellular, eukaryotic organisms that always lack cell walls

Models are non-visual ways of coummincating how someone thinks about something in the natural world

Which identifies the main purpose of biological taxonomy?