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.
Bot Emily Dickinson and Walt Whitman created poems about equality and unity. One of Whitmans most famous being Leaves of Grass and Dickinsons made many poems towards womans rights. cheers