Henry Ford was the first entrepreneur to implement assembly line
production. There is some discussion as to whether it was actually Ford
himself that truly came up with the idea of bringing the assembly line
into the factory, but it cannot be argued that never before had it been
done with quite that level of success.
American settlers and American Indians often clashed as settlement spread across the West during that era
The correct answer is: "the end of American neutrality in World War II"
The Lend-Lease Act was a program enacted in the US in 1941 to provide support to Allied countries so that they could defeat the axis forces (nazi Germany, fascist Italy and the Japanese Empire) in WWII, but the US had not decided to directly participate in the conflict yet.
The program consisted on the distribution of food, oil, and all types of military materials and it remained functioning since 1941 until the end of the conflict in 1945.
Answer:
A - It shows the boundaries of the countries in Europe.