Answer:
tragic hero
Explanation:
A tragic hero is a type of character in a tragedy, and is usually the protagonist. Tragic heroes typically have heroic traits that earn them the sympathy of the audience, but also have flaws or make mistakes that ultimately lead to their own downfall.
The story, "The Dark Brown Dog", is about a boy who came upon a dark brown dog and it ended up following the boy home. the boy tried to make the dog run away but his efforts were useless. the boy brought the dog home to his family and they decide to keep him. Over time they form a bond. when the dog is not in sight of the boy it gets abused and that abuse haunts the dog and he has nightmares through the night. the only thing that makes his nightmares better is the boy. so basically this story is about how a boy and his dog build up a relationship but the people around them affect the dog
The answer is D vertebrates <span />
"living in exile"
This is referred to as living in exile, because the 24th row is the "x-aisle", which is a play on the word "exile" because that's what it sounds like out loud. Typically, this is used as a joke or a pun in algebra or another math class.