He ran __________ in the race.

The correct answer is Option (3) → quickly

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.

Complete sentence: He ran quickly in the race. “Ran” is a verb. To tell how he ran, we need an adverb.

Option	What it tells	Example
(1) quickened	the past form of the verb “quicken” (became faster or made faster): the sentence already has the verb “ran”	Her steps quickened when it started to rain.
(2) quickness	a noun meaning the quality of being fast: it cannot tell how he ran	The coach praised the quickness of the young goalkeeper.
(3) quickly (answer)	the adverb made by adding -ly to the adjective “quick”: at a fast speed	Sonu finished his homework quickly and went out to play.
(4) quicken	a verb meaning to become faster or make something faster: it cannot describe the verb “ran”	We must quicken our pace to catch the train.