The correct answer is the option A) They contrast Victor's creation with God's creation of man. Mary Shelley uses references of "Paradise Lost" by Milton, in the figure of the monster who reads the story, to contrast him with Adan. The monster reads the story and he felt a connection between Adan, the creation of God but at the same time, he knew that he is different.
There is an important connection as both creatures (the monster and Adan) were created by a perfect image of their creators but there is a clear distinction between them. In the case of "Paradise Lost" God creates Eva to give company to Adan but in the case of the monster he is alone in the world and Frankenstein refused to create another monster to give him company.
Another important difference is that God creations are natural and therefore normal while the monster that is made by the human is not. God protects his creature and makes him happy but Frankenstein abandon the creature and make him unhappy and lonely.