World peace, or peace on Earth, is the concept of an ideal state of happiness, freedom and peace within and among all people and nations on earth. It can also be referred to as a global process of maintaining the environment of the Earth not less than when it used to have no any existence of war or violence.This idea of world non-violence is one motivation for people and nations to willingly cooperate, either voluntarily or by virtue of a system of governance that objects it will be solved by love and peace. Different cultures, religions, philosophies and organisations have varying concepts on how such a state would come about.
The correct answer of this question is option E. The type of expository structure that was used to write this paragraph is comparison or contrast. Both John Milton and John Bunyan were compared with each other. The difference between the two of them was also shown having John Milton wrote an epic while John Bunyan wrote an allegory.