B, C and D are all enlightenment ideas. They are enlightenment ideas, because they emphasize reason and scientific knowledge over religious theory and religious tradition. Diderot's Encyclopedia is a huge mile stone for the Enlightenment Period as it was a huge book of information so that it could educate the masses and there was a general idea during the time that all humans were equal and that elite monarchy and elitism in religion should not exist.
That would be cowboys, my dear friend.
Modern astronomy came mostly from the discovery that the earth was revolving around the sun and not the sun around the earth. The church claimed before that the earth is in the middle of the universe and that the sun goes around it, however, astronomers of the time managed to prove that the earth was in fact revolving around the sun.
The right answer for the question that is being asked and shown above is that: "D) trade imbalances caused by Emperor Ashoka's reign in India. " The Han dynasty (206 BCE – 220 CE) was weakened significantly because of the trade imbalances caused by Emperor Ashoka's reign in India.
