What are some characteristics of persuasive articles?

"dogs make wonderful pets because they us stay happy and healthy"the topic sentence is "dogs make wonderful pets" i need writing a sentence that is unrelated to the topic and can be eliminated.

Sign wet paint when you see this sign, what will you say to other people that is going to sit? a. you must stay away from the area because it is under construction. b. you must not sit on the bench, so just stay away from it. i’m just not sure which one is correct

Han put the last box into the back of his car and turned to look up at his dorm room. he saw himself through the window, laughing with his roommates and sharing his hopes and dreams. he saw all of the hours spent studying and the celebrations at the end of each semester. he smiled fondly as he turned away, got into his car, and drove off. which literary element does the passage contain?