The statement that best investigates the relationship between the Enlightenment and laissez-faire capitalism is:
**Both laissez-faire capitalism and the Enlightenment support the ideas of individual property and rights.**
This statement acknowledges the connection between Enlightenment thought, which emphasized individual liberties and property rights, and the principles of laissez-faire capitalism, which promotes minimal government intervention in economic activities and upholds the rights of individuals to own and manage property as they see fit.