I believe the best answer for this would be D
Explanation: The Mandate of Heaven did not require a ruler to be of noble birth, and had no time limitations. Instead, rulers were expected to be good and just in order to keep the Mandate. The Zhou claimed that their rule was justified by the Mandate of Heaven. In other words, the Zhou believed that the Shang kings had become immoral with their excessive drinking, luxuriant living, and cruelty, and so had lost their mandate.
I believe it is the 'domino theory' as one country falls then pushes the next to fall and so on and so forth. Just like dominos.
Answer:
I believe it was the constitutional convention
I'm not sure on the context of your question, but the Europeans were looking for a faster way to India and discovered the Americas by accident.
