Nomenclature is a science of providing distinct and proper names to organism so that they can be easily recognized and differentiated from others.\xa0In trinomial nomenclature, the names of taxa have three parts. The first part is the name of genus, the second part is the name of species and third part is the name of subspecies. For example,\xa0Brassica oleracea botrytis.So, the correct answer is \’Subspecies\’.
In biology,\xa0trinomial nomenclature\xa0is used to\xa0name\xa0living things at a rank lower than species. The term\xa0trinomial nomenclature\xa0means “three-part\xa0name” or “system of three-part names”. If living things r than species get a scientific\xa0name, each\xa0name\xa0has three parts.\xa0Binomial Nomenclature:\xa0Binomial nomenclature\xa0was given by carolus linnaecus in his tenth edition of system natura published in 1758.\xa0Binomial nomenclature\xa0is defined as system of\xa0nomenclature\xa0that denote species of living organism.