Which answer adds an adverb phrase to this sentence? the store gave out samples. the store gave out samples today. the store gave out samples that would encourage people to buy treats. the store gave out samples by the dozen. the store gave out samples and sold out of pizza.

The store gave out samples by the dozen. - Is the correct phrase, as an adverbial phrase is a word/ phrase that modifies the/ qualifies an adjective. So the 'dozen' modifies the sentence.

The store gave out samples by the dozen.

Explanation:

a phrase is a set of word that make a sense, an expression formed by two or more words.

" teacher´s dictum on the possession of human "

" made a pile practicing "

" lived to an impressive age and dies "

a clause, in a grammar way is a series of words that have a complete meaning.

" was irritated by the persecution of those who called themselves "

the answer to this question is unstoppable.