It was the "oil crisis" that was one major cause of the recession in the United States in the 1970s, since many countries in the Middle East cut prices to manipulate prices. This put a focus on alternative energy sources that continues today.
I believe the 3 motives for exploration would be, God, Gold, and Glory.
C is the best answer because it has reason in it and that is what the enlightenment was mostly about
The Mongols were very tolerant towards foreign culture. In fact there weren’t an centralized culture/religion because the empire was so diverse. Thus, the answer is the second one- The Mongols supported and spread different arts and cultures throughout the empire.
Hope this helps!