The adverb is either because it helps describe the sentence more.
the answer for this question is A) reviewing
I believe that sentence 2 is the correct answer.
The ball, that was yellow and made of rubber, bounced down the road.
Our clause is : "that was yellow and made of rubber." This describes the features of the ball, which is the noun. Adjectives describes nouns therefore this sentence would be the correct answer!
I believe that 'ONES' in this sentence is a (B) direct object.
this is because 'one's is the subject of the sentence upon which an action is being done. The action is being 'introduced'.