Please help how can we distinguish between the they say and the i say

In expanded academic asap and other periodical databases, it’s best to put your exact phrase

In what way is victor frankenstein, instead of his creation, most clearly monstrous? a.he disconnects from his family and friends. b.he wishes that he could control the world with his monster. c.he believes that he can achieve success in the scientific world. d.he becomes angry at the monster, even though he created it.

Which three lines in this expert from anita desai’s games of twilight clearly show an omniscient narrator