- which
- is
- slowly
- none
The correct answer is “slowly” because it modifies the verb “walks” by describing the manner of the action. It answers the question “How does she walk?” – slowly. The word “slowly” is a classic example of an adverb, often recognized by the “-ly” suffix added to the adjective “slow.” The other options are incorrect: “which” is a relative pronoun or interrogative word, “is” is a verb, and “none” is a pronoun. In the given sentence, “slowly” is the only word that functions as an adverb, providing additional information about the verb.
