C. group of closely related species of plants or animals.
D. none of the above.
Correct Answer : C.
Genus is the first higher category above the level of species. A genus may have one to several species. A genus having a single species is called monotypic. Currently, the genus Homo is monotypic with a single species of Homo sapiens. A genus having two or more species is called polytypic. The genus Panthera is polytypic. Some species of this genus are P. leo (Lion), P. tigris (Tiger), P. onca (Jaguar) and P. pardus (Leopard).