The correct answer would be C
The Atlantic revolutions (such as the American and French Revolutions) were influenced most by the Enlightenment idea of reason and rationality.
Enlightenment thinkers felt that science and reason should be applied to the analysis of all aspects of life. They felt that nothing should be accepted simply because it was traditional to do so. They believed that pursuing reason and natural law would lead to progress in human society.
These ideas clearly showed in the ideas of the Atlantic revolutions. These revolutions did things like attacking the idea of monarchy in favor of democracy. This fit nicely with Enlightenment thought because monarchy was a system that was not rational and was only adhered to because of tradition. The French Revolution was strongly anti-clerical. This, too, was consistent with Enlightenment thought since giving power to the Church and clergy was a traditional idea with no basis in science and reason.
Thus, Enlightenment ideas of rationality and reason and science strongly influenced the Atlantic revolutions.
Gave other people diseases and sickness making them ill and couldn't fight because of the illness's many people didn't make it
A letter written during the time a historical event occurred is a useful primary source document.
Primary source documents are the most original way to understand Historical events.
If it was the letter written for discussing analysing the same historical event after the occurrence of the event, it would have been considered as a secondary source.
