Which sentence uses a verb that agrees with its subject?

a.
leaves blows in the strong wind.

b.
acorns falls from the oak trees in the woods.

c.
cobwebs cover the windows of the old house.

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 "

it is an infinitive phrase with a subject.