Answer:
a.
a self-propelled engine, powered by steam, diesel, or electricity, for pulling or, sometimes, pushing.
Generally speaking, entertainment and education were two of the beneficiaries of the "<span>America Revolution", since this Revolution instilled a democratic and "free" system in which these two subjects could flourish. </span>
The answer is reason.
Philosophers of the Enlightenment believed that answer can be found
through reasoning. There were two types
of reasoning during that time. You have
rationalism that relies on deduction and Empiricism which deals with
experience. It took root due to the liberal atmosphere at the time.
C............................................
