which of the following sentences contains a comma error? (5 points)

despite his great hunger, roger continued his fasting for world peace.
the little, old man could hardly stand up due to his painful arthritis.
i packed my warm sweaters, long pants, and heavy coat for our trip.
while i was working on my homework, there was a bad thunderstorm.

- "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)."