18. Which of the following lists the taxonomic categories in the correct hierarchy, from most to least inclusive, under kingdom? (A) Class, phylum, order, family, genus, species (B) Order, class, phylum, family, genus, species (C) Phylum, class, order, family, genus, species (D) Phylum, order, class, family, genus, species (E) Order, phylum, family, class, genus, species