Which of these lines from walt whitman's "i hear america singing" describes a unified america? i hear america singing, the varied carols i hear, those of mechanics, each one singing his as it should be blithe and strong, the carpenter singing his as he measures his plank or beam, the mason singing his as he makes ready for work, or leaves off work, the boatman singing what belongs to him in his boat, the deckhand singing on the steamboat deck, . .

- "a nonrestrictive clause functions as a modifier to a noun (that is an object, person or concept). these clauses can be described by the following three options: it is set off by comas, it contains a subject and a verbs and it adds nonessential information to the sentence.

for example, in "here is bill gates, who confounded microsoft software company" we can identify "who confounded microsoft software company" as a nonrestrictive clause modifying the noun bill gates. this clause can be describes as a nonrestrictive clause because it is separated by a comma, it adds nonessential information to identify who bill gates is and it must contain both a subject (who) and a verb (confounded)."

the answer is a hoped this