Gatsby is blamed for Tom's affair with myrtle and the murder of his mistress. So I would say Gatsby, however Tom is responsible for Gatsby's death.
If there were adults on the island then the adults would be telling them what to do and they wouldn't make their own decisions.
They have a connection because nick reminds gatsby of himself but he also sees daisy in him the girl he loves
The answer would be C, "actors", because it describes the subject "we" more thoroughly, and that is actually the function of the appositive within a sentence. "Committee" is an indirect object, "we" is a subject, and "award" is a direct object.