"Feeling appreciated is one of the most important things in a happy family. All of the family members should say how much they appreciate each other, how great it is that they have each other, how much they love each other, and how grateful they are for everything they do for each other."
The correct answer is A. lunches and river.
A common noun is concrete - it refers to something you can touch, feel, something that surrounds you; words such as desk, mirror, rug, are all common nouns.
B is incorrect because those are proper nouns, meaning they refer to the names of people or places. C is incorrect because eat is a verb, and side is an abstract noun. D is incorrect because both words are verbs.
The Outcasts of Poker Flat is an excellent example of Naturalism. This literary movement deals with high realism and often determinism based on your social status that can supposedly never change.