The correct answer is placing monetary values on everything
D is the answer your looking for
The science of classifying living things is called taxonomy. Linnaeus introduced the classification system that forms the basis of modern classification. Taxa in the Linnaean system include the kingdom, phylum, class, order, family, genus, and species. Linnaeus also developed binomial nomenclature for naming species.
When a baby cries, does its caregiver immediately respond? How do they respond?