Is usually straightforward enough so as to have the audience grasp its meaning.
Caricature
Satire
Epic poem
Trony

the answer to "what does the narrator realize by the end of the story" is b.

may i ask on your question is there any word specific that is bolded or are they wanting us to figure it out?

it depends on the natural disaster. a good one you can choose are hurricanes. water vapor is the "gas" and warm fronts are the "spark". because of the global warming that humans have caused with green house gases, hurricanes have become more frequent and stronger, making them more dangerous.