The philosophers of the enlightenment hoped to improve human society by

a.) using reason to solve human problems
b.) stressing the importance of religion
c.) doing away with all the government
d.) censoring unpopular opinions

The philosophers of the Enlightenment hoped to improve human society by using reason to solve human problems. The correct option among all the options that are given in the question is the first option or option "a". I hope that this is the answer that has actually come to your help.

Internal combustion engines