Topic: Interchange of Parts of Speech,

Best Answer Explained in Below-:

The correct adjective for the noun "noise" is "noisy," making option D the right answer. Adjectives are words that describe or modify nouns, providing additional information about their qualities or characteristics. In this case, "noisy" specifically relates to the quality of producing a lot of noise, characterized by sounds that are loud, disruptive, or unpleasant.

Let's briefly analyze the other options to clarify why they do not qualify as adjectives for "noise."

Option A, "noisiness," is a noun that signifies the state or condition of being noisy rather than describing something.

Option B, "noisily," is an adverb that describes the manner in which an action takes place, but it does not modify a noun directly.

Option C, "noiseless," is also an adjective but describes the absence of noise rather than the presence of it.

Therefore, "noisy" directly describes something that generates a significant amount of noise, making it the most appropriate and accurate adjective in relation to the word "noise."