Ow did America’s economy prosper from World War I? A. The U. S. took over some of the colonial holdings of the Central Powers
B. The U. S. sold Europe goods needed during the war and took over some markets completely
C. The U. S. was paid large reparations from Germany and Austria- Hungary
D. As part of the terms for entering the war, the U. S. wanted temporary control of French coal mines after the war

B. The U.S. sold Europe goods needed during the war and took over some markets completely

Explanation:

"The total value of U.S. exports grew from $2.4 billion in 1913 to $6.2 billion in 1917. Most of that went to major Allied powers like Great Britain, France, and Russia, which scrambled to secure American cotton, wheat, brass, rubber, automobiles, machinery, wheat, and thousand of other raw and finished goods." - Heather Michon

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )