The suffix -ine in the word heroine refers to a female person. A hero is a main protagonist, or a brave man, but if you want to use a word for a woman to denote the same thing, you would add the suffix -ine to mark that this is a female gender. Hope this helps! :)
D) to change so as to better suit your surroundings
Definition
make (something) suitable for a new use or purpose; modify.
-become adjusted to new conditions
I would go with the introduction of characters and setting
-Hiadamcom
Option B, <em /><span> <em>Cats are normally calm and resigned, W</em>ould be the best for this paragraph because every other line talks about the same species. it takes an ABAB pattern. Because the previous sentence was about dogs, this one should be about cats. The only one meeting the Criteria is B</span>