I would choose d)Revising topic.Hope i helped u:)
B: Service is being an active helper in the community and taking action that can be of benefit.
No change because the rest are basicly repeats
The pronoun in the sentence is the word: Someone. The type of pronoun in the following sentence is an example of an indefinite pronoun. An indefinite pronoun is a type of pronoun that does not particularly indicate a person, thing or amount.