What is the BEST description and explanation for the underlined words in this sentence? The teenager smiled and exclaimed, "My two favorite activities are eating and sleeping!" A) Eating and sleeping are verb forms that are functioning as nouns. B) Eating and sleeping are noun forms that are functioning as verbs. C) Eating and sleeping are verb forms that are functioning as adjectives. Eliminate D) Eating and sleeping are adjective forms that are functioning as verbs.