The correct answer is system of naming.
Terminology
A. particular doctrine
B. renting indefinitely
C. system of naming
D. bringing to a close
The correct answer is (C) A system of naming; nomenclature; the technical terms of a particular science, profession, field of study, etc.
Terminology comes from Latin terminus (terms).
Examples of use:
- Much of the terminology of biology appears to be derived from Latin.
- The terminology of their field kept appearing throughout their conversation.