I think it’s c but I’m not sure
- Had thrown the caution to the winds means: to do something without worrying about the risk or negative results
I do not have enough information to answer anything else. Sorry.
Charles is Hal's brother in law, he does not talk much. Mercedes, sister of Hal wife of Charles,and she spends much of her time crying and complaining. Hal is a young nineteen or twenty who buys Buck.