The answer is D Cats are the smartest animals.
Remember, a linking verb <span>is a </span>verb which<span> connects a subject to its predicate without expressing an action.
"Was" is the linking verb.
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What is this for I’m lost ?
Diction refers to the choice of words with specific meaning , or connotations that helps the author to communicate his or her tone - best explains the relationship between diction, connotation, and tone. [ ]