The sentence that uses a gerund phrase as a noun is "Listening to the announcements at the end of the school day made Sarah aware that the newspaper..."
What is a gerund phrase?
A gerund phrase is a group of words in which the gerund is the most important word. A gerund is the -ing form of a verb, such as "listening" or "sharing."
In option D, the gerund phrase is "Listening to the announcements..." and it functions as a noun, more specifically as the subject of the verb "made". Therefore, option D is the correct answer.
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