I think it's c but I am not sure
In 539 BC era human rights are originated.
<u>Explanation:</u>
According to the United Nations, the era in which the human rights were originated was the 539 BC. This happened when the troops of Cyrus, the great had conquered Babylon.
When he conquered Babylon, he set the slaves free and gave the people of that area the right that they could choose any religion that they wanted to follow and practice. This era also started the equality among the people of different races and gave them racial equality. All this were the human rights.
The Mongol Empire existed during the 13th and 14th centuries and it is recognized as being the largest contiguous land empire in history.
The answer would be that light can be reflected or refracted
Thomas Jefferson, a spokesman for democracy, was an American Founding Father, the principal author of the Declaration of Independence (1776), and the third President of the United States (1801–1809).