<span>It is unnecessary when you use a proverb or something that belongs to the domain of common knowledge.</span>
I think it might be d but I am not sure I need more background knowledge
The answer would be D) A ''Big Year'' offers many rewards beyond winning because in the paragraph its talking about all the more important rewards other than the rank winner, but instead you get new friends, see new things, and opportunity to do something you love.
B. run-on
It is thoughts that just keep going without ending the sentence and joined together with the conjunction and.
His claim in his letter is he is helpful