C is automatically out - it has nothing to do with gold. Additionally, D could be crossed out because there is nothing negative about Odysseus so nothing could conclude that he isn't as great as he should have been.
So we have a and b - both make sense. a) god-like b) resourceful. I would think b) because godlike doesn't mean he's a god - but he could be compared to one in terms of character and he was resourceful in facing his problems.
Literary Criticism is a very huge area including Literature of Reviews, Appreciations, Literary Theories, and so many other things touching literature such as Psychology, Linguistics, etc.
Literary Theories have a very limited access to understanding and application. Here are some examples of Literary Theories. Literary theory is a wonky world where monocle-sporting people say things that not even they understand.
The answer is the main idea.