"The children listened quietly to the story."

The correct answer is Option (4) → Adverb of Manner

An adverb is a word that tells how, when, where or how much something happens. It can also describe an adjective or another adverb, for example she sings sweetly, very hot.

In this sentence, quietly describes the verb “listened”. It means without making noise. It tells how the children listened.

Option	What it tells	Example
(1) Adverb of Reason	why something happens	She was tired and hence went to bed early.
(2) Adverb of Time	when something happens	Dadi told us a story yesterday.
(3) Adverb of Place	where something happens	The children sat outside under the neem tree.
(4) Adverb of Manner (answer)	how an action is done (quietly, slowly, well)	Grandpa closed the door quietly so the baby would not wake up.