Which of the following sentences contains a comma error?

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

The sentence which contains a comma error is the following one:

The little, old man could hardly stand up due to his painful arthritis.

Explanation:

Two adjectives in a row are used to describe the man (little and old), and because of that there should be no comma separating those two words. The proper way to rewrite the sentence would be the following one:

The little old man could hardly stand up due to his painful arthritis.

can you give us the options

to and without are prepositions, so a, b, and d are prepositional phrases. the adverb phrase is c, about the surprise.

explanation: