What are some ways that a novelist addresses the values conveyed in people’s actions, beliefs, and principles?

Instead of declaring an agenda outright, the novelist demonstrates his beliefs, values, and principles in his construction of characters, choice of setting, action and consequence, and language use.  To accomplish this, the author must avoid personal narrowness, bigotry, and fanaticism.

halibut, flounder, tuna, and trout are all fish. so your first answer is 1.) fish. and since fish is edible, your next answer would be 3). edible

to describe those fishes more thoroughly, some of those fishes live in fresh water, and some of the fishes live in salt water, and that is not a thing that they all have in common. the question is asking what is common with all of the fish, so answer choices 2). fresh water and 4). salt water are not right.