Read the excerpt below and answer the question. In the middle of summer 1966, I drew the unwelcome attentions of the government when, quite gratuitously, I sent a letter to my draft board.

Choose the best synonym for the word "gratuitously" as it is used in this excerpt from “Let Sleeping Dogs Lie.”

thankfully
unnecessarily
importantly
rudely

It was fifteen minutes before i could work myself up to go and humble myself to a ; but i done it, and i warn’t ever sorry for it afterwards, neither. i didn’t do him no more mean tricks, and i wouldn’t done that one if i’d a knowed it would make him feel that way. in at least one hundred words, describe what central theme in the adventures of huckleberry finn emerges in this excerpt, and how its emergence relates to the social norms of the time.