"If the ruling dynasty was wealthy, it would keep the Mandate of Heaven" is the best answer from the list, but it should be noted this was not always the case.
Support:
-Sharia
-The rule of a caliph
-Religious governments
Oppose:
-Western culture
-Secular governments
-Democracy
Answer:
because it flooded every year
The preamble explains the reasons why the Framers of the constitution made our government a republic.