Choice B was not a result of Sputnik's launch. Sputnik, since it was a satellite, promoted the US to up its game. Education was bettered, and the space program moved more rapidly to challenge the USSR's programs.
Since you're in a rush, the shortest answer would be that it is D., William Seward, whom decided to buy Alaska.
Answer:
D is the answer.(hdjdhdhdhddhhddjd) is for the full fill ment of characters