Your best answer is c probably.sorry if I got it wrong
Sugar
Sugar was the main crop produced on plantations in the 1500s Americas. Columbus had opened the way for Spanish explorers who came to the America. Sugar mill construction ignited development of the technological skills needed for an emerging industrial revolution in the early 17th century
I don't know all of them but the battle of Lepanto took place in 1571.
The answer is b. because she discovered a comet.
On June 25, 1950, the Korean Warbegan when North Korea, supported by the Soviet Union and China, invaded South Korea, which was supported by the United States. General MacArthur, leader of the United Nations forces, drove the North Koreans back across the divide, yet encountered a Chinese invasion.
Basically, the U.S was a fellow supporter of south korea, and that's how they got included.
