This consistent structure reinforces the consistently positive traits of the nation... In two or three sentences, explain what president Roosevelt is asking of his audience
I think it's d because to me that's the only one that makes sense out of all of them.
They both have the element of characterization the same.
MLA Style says numbers that can be written in one or two words (three, fifteen, seventy-six, one thousand, twelve billion) and to use numerals for other numbers (2¾; 584; 1,001; 25,000,000). APA Style, uses words for numbers below 10 and numerals for numbers 10 and above.