Its true i guess??? since you did the question and the answer
Yes, and I think it's B,too
Hope it helps.
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.
Islam regulates, apart from beliefs, also everyday life and customs. For example, it restricts what you can eat (halal) and effectively ensures that you will most likely eat with fellow Muslims (you're unlikely to eat non-halal food with non-believers).
It also regulates your day, requiring you to pray five times a day - this has a big influence on people's everyday life.
Latin America began building its own factories and exporting raw materials, (i think)