It would be on how to handle and manage the world after the Second World War. After the war the allied powers were divided on how the world would look after and it resulted into conflicts and struggles and even resulted a Cold War between the two world's superpower which is the US and the USSR.
The answer is C. They allowed African Americans to claim land.
The correct answer is Malaria
Malaria was a huge problem since it couldn't be treated and people mostly died from it. It prevented numerous explorers from venturing into places like Africa where Malaria was running rampant due to the huge amount of mosquitoes. When it was discovered, it enabled numerous people to live at ease because they could not live with the disease or prevent getting it.
Answer: The telegraph made communication much easier, the railroad made transportation of goods and people quicker and easier. The sewing machine made life on the plains easier.
Both were members of the Sons of Liberty
