Noun
Bcz these are things
Smug is the answer. Gloat means to celebrate one's misfortune with smugness. Hope this helps :)
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 ...
I believe it's answer "C." The Tone Is The Author's Voice While Describing Events.
