I know that this isn't what you're looking for, but the answer is not B. The rebellion brought about a decline in race-based slavery. I know because I took the quiz.
Answer:
The National Labor Relations Act.
I hope this helps you. ✧
The event that resulted in the creation of NASA would be when the Russian's first launched the Sputnik into space and JFK told America that we will be the first on the moon and that we will not let the Russian's win this race. Which hence why we called it the space race.
The Treaty of Paris, ending the Spanish-American War, was signed on December 10. Spain gave up Guam, Puerto Rico, its possessions in the West Indies, and the Philippines in exchange for a U.S. payment of $20 million. The United States occupied Cuba but, as provided for in the Teller Amendment, did not try to annex it.