At last robert and i got to the top with the mules and their burdens. i was utterly exhausted. i took a buffalo robe from the packs and wrapped myself in it, and lay down by the side of the road on top of the mountain and went to sleep.
what is the tone of this excerpt?
a. informal
b. joyful
c. relieved
d. dismal

the answer is option 1

explanation:

- "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)."