Answer: C. more powerful than modern-day civil sevants
Explanation: I got an 100% on the k12 quiz
Answer: the Scientific Revolution.
Explanation:Hope this helps
Thomas Edison invented the electric light bulb
Harriet Tubman lead the slaves to freedom
Thomas Jefferson wrote the Declaration of Independence.
Ben Franklin assisted in the draft for the Declaration of independence but he is known for being the US ambassador for the revolutionary war
Franklin D Roosevelt was elected president four times
Hope this helps :)
The correct answer should be Advances in Technology and Industrial revolution
Mexican-American war happened in the 40s so that's before 1860, while a war with Spain occurred in 1898 which is after the mentioned period. They did advance in technology exactly due to the industrial revolution. An agrarian revolution. An agricultural revolution didn't happen in the US because of the Long depression that slowed it all down.