Which sentence BEST states a theme of the poem? (.A.) All living things share similar characteristics
(.B.) Nature is both distressing and fascinating.
(.C.) Breaks in a routine can cause harm and confusion
(D.) The presence of danger requires immediate action

From i-ready diagnostic​

the answer is:

when will (v) the books (n) be (v) due?

nouns refer to people (other than pronouns), places and things, whereas verbs describe actions and are usually part of the predicate of a sentence. finally, pronouns can work as nouns and identify the participants in speech.

in the example sentence, "will" is a verb part or auxiliary verb, "be" is an infinitive verb and "books" is a plural noun.