B, that is the only one that makes sense in this sentence. If the sentence was worded differently than it would be, C
There are two prepositional phrases which are by the boy , and up the tree
None of the above (N.D.A in Portuguese)
My hobby is what? Surfing
Any part of the sentence that answers 'what' is the Direct Object
Considering the tone and the message in the excerpt, I believe the correct answer to be option C: "All people should dedicate a fair amount of their time to politics", this is because of the way Roosevelt says that everyone has a civic duty and there is no excuse that justifies not fulfilling said duty. He also says that voting is the least a person could do and by doing so, is not to be regarded as a "good citizen" since they could be doing more. So basically, it isn't option A or B or D, especially this last one since he condemns people who vote not just those who do not vote.