Answer:
They are referred to as a discipline
Explanation:
Hello Sophuechait2,
Your answer would be:
C. Compare definitions for the word with its synonyms.
I believe this correct because if you don’t know the true definition of the word synonymous that are similar to this word might help you out.
~Rendorforestmusic
The underlined word <em>unique </em>is used as C. predicate adjective in the sentence.
A predicate adjective is the adjective following a copulating/linking verb.
The linking verb here is <em>is, </em>and the predicate adjective is therefore the adjective following it, which is <em>unique. </em>