Explanation:
Verbs are words that demonstrate an action, such as sing, dance, smell, talk, and eat. When combined with linking verbs, such as is, must, will, and has, they form verb phrases. Verb phrases can consist of one to three linking verbs, and action verbs, and sometimes any complements (such as objects or direct objects).
"She walked down the long, winding road."
That would be the correct answer because, when describing a noun using more than one adjective side-by-side, you need to separate them with commas.