What was the main idea of the book the spirit of laws?

What did kublai khan learn from the chinese advisers he consulted?

What is the main idea of this excerpt

Enlightenment thinkers most contributed to the development of whichpolitical idea? a. religious leaders should play the largest role in establishing asociety's laws.b. democratic governments have the responsibility to protect humanrights.c. criminals must be punished harshly if a society is to maintainorder.d. written constitutions place unnecessary restrictions ongovernments' powers.