Which statement best explains the validity of this argument? O The argument is valid because the author provides reasoning for why Black citizens are "patient, faithful, law-abiding, and unresentful." O The argument is valid because the author encourages his listeners to look around at the "eight millions" of Black neighbors they already have. O The argument is valid because the author explains his appeal to "cast down your bucket where you are" and gives evidence of what will be found. The argument is valid because the author explains his claim that listeners need not be afraid of "strange tongue and habits," as they will bring prosperity if given a chance​