The part of Ernest Hemingway's short story "The End of Something" that is the best example of rejection of traditional beliefs is C. when Nick says love is not fun.
The traditional belief would suggest otherwise - however, by denying the thrill of love, Nick is getting rid of this innate traditional belief. The other examples do not really show this type of rejection, they represent other things that can be found in the story.
Brian learns that nature can be cruel. He also learns to respect nature and to be aware of his surroundings. While the attack from the moose may have appeared random to Brian, he did learn that the moose provides a warning before attacking.
Answer:
Mount Everest is the highest point on Earth. ... such a high altitude year round, they are accustomed to the low ... people has also come more pollution up near the summit ...