By gaining possessions and influence in Asia and the Americas during the Spanish-American War, the United States __________.

a. Threatened British power around the world.
b. Forced China and Japan to open their ports to trade.
c. Helped Spain keep its power in Europe.
d. Became a worldwide power with an extended reach.
e. Allowed the US to increase trade with Japan.
f. Allowed the US to increase trade with the Philippines.