c- binomial nomenclature
The answer is Binomial nomenclature.
Binomial nomenclature is a system of naming of an organism by two names is introduced by Carolus Linnaeus. In this system the name of any organism is written by its genus name and species name. While writing the scientific name of an organism, the name of the genus written first with a capital letter and the name of the species is written second with a small letter. For example, Canis lupis is the scientific name of wolf. Canis is the generic name and lupis is species name.
The naming system used for classification of organisms is known as Linnaean taxonomy. This has been created by Carl Linnaeus, the Father of Taxonomy. This is the scientific method of classifying living organisms with the use of what we call as binomial nomenclature or the combination of a genus name and the organism’s species. With Linnaean taxonomy, it has a ranked hierarchy as follows: Kingdom, Phylum, Class, Order, Family, Genus, Species