Explanation

The keyed answer is (A) Verb, which fits if the word actually underlined in the original paper was "eats" ("Rita eats her dinner …"). As transcribed here the bold falls on "quickly," which unambiguously modifies the verb "eats" and is therefore an adverb, not a verb — so the underline appears mis-transcribed. Both reputable keys nevertheless mark (A), which is retained: key disputed.