Identify the sentence in which an Adverb of Manner has been used :

The correct answer is Option (3) → He briefly narrated the incident to me.

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.

Adverb of manner:

• An adverb of manner tells how an action is done: quickly, carefully, loudly, briefly.
• This sentence: briefly tells how he narrated the incident (in a few words).

Why the Other Options are Incorrect?

Option 1: She dances very rarely. — Incorrect. Rarely tells how often, so it is an adverb of frequency.

Option 2: My brother comes often every Sunday. — Incorrect. Often is an adverb of frequency (and is out of place beside "every Sunday").

Option 4: He goes usually to the movie every Friday. — Incorrect. Usually is an adverb of frequency too (and should come before the main verb: usually goes).

Contrast: an adverb of manner tells how an action is done (briefly). An adverb of frequency tells how often (rarely, often, usually).