The Taxonomy includes
(a)Classification
(b)Nomenclature
(c)Identification
(d)All of the above

Hint: The word ‘taxis’ meaning arrangement or division, and the word ‘nomos’ meaning law. Hence, Taxonomy is the science of classification according to a predetermined system.

Complete answer:
In biological terms, Taxonomy is a branch of science that deals with the nomenclature, identification, and classification of living organisms and the extinct organisms.
Nomenclature, in biological classification, a system of naming organisms. A specific organism is understood by an equivalent name everywhere on the planet. The species to which the organism belongs is indicated by two words, the genus and species names, which are Latinized words derived from various sources.
The recognition of the identity or essential character of an organism is Identification. Example- The organism lion is identified by the common names (i.e. lion) or scientific name (i.e. Panthera leo).
Classification is "the arrangement of organisms into groups or taxa." It is the process by which everything is assembled into convenient categories (based on behavioral, genetic, and biochemical variations) that support some simply observable characters. Example - placing plants or animals into a kingdom and species.
Therefore, the classification, nomenclature, and identification are the processes, which are basic to the taxonomy.
So, the correct answer is ‘All of the above’.

Note: For plants, the scientific names are based on agreed principles and criteria, which are provided in the International Code for Botanical Nomenclature (ICBN). Animal taxonomists have developed the International Code of Zoological Nomenclature (ICZN). The scientific names make sure that each organism has just one name.