Provide personal experience or know someone whose experience can relate.
The smoke, which fills the hut, makes the eyes smart. It is particularly dense in the upper part try'.
the best choice here is B, foreboding.
foreboding means: fearful apprehension; a feeling that something bad will happen.
there's a couple of examples that the author highlights this tone in the passage.
"completely unaware that your day will be nothing close to normal"
"fail to notice what is suddenly missing"
hope i helped. good luck!
