- Step 1: "Confidently" describes how she walked, modifying the verb.
- Step 2: Evaluate: (1) Adjective (modifies noun), (2) Adverb (modifies verb), (3) Noun (person/place/thing), (4) Verb (action).
- Step 3: Adverb fits as it describes the action "walked."
- Step 4: Confirm: "Confidently" ends in "-ly," typical for adverbs.
- Step 5: Option (2) is correct.