The effect of an omniscient third-person narration would be (C) The reader would have a better understanding of the thoughts and opinions of the Aulds.
This narrator, oblivious to what happens, tells everything that occurs to the characters. Knows the characters in a very intimate way and give an account of their most recondite thoughts. Usually equate to a god: a being who sees everything, knows everything.
A hero is someone you look up to when you need it the most. Its not someone who just does good stuff, its someone you rely on and can depend on when you need them the most.