Answer:
•Quietest is a superlative adjective. A superlative adjective compares one noun to all of the other nouns in its category. The quietest and the most quiet are both acceptable but “the quietest” is much more common. The most quiet often sounds strange to the ear of a native English speaker.
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ANSWER: QUIETEST
EXPLANATION: is a superlative adjective. A superlative adjective compares one noun to all of the other nouns in its category.
