The correct answer is terminology.
A. agreement of subject and verb
D. nominating process
The correct answer is (B) Terminology; a set or system of terms, as those used in a particular science or branch of knowledge; nomenclature used to classify things; systematic naming within a category.
Nomenclature comes from Latin nomenclatura (list of names).
Examples of use:
- Every field of study appears to have its own system of nomenclature.
- Much of the nomenclature in some fields is incomprehensible to an outsider.