Answer:
Los componentes básicos de los argumentos son proposiciones (o declaraciones o afirmaciones). Una proposición (declaración o afirmación) es una oración que es verdadera o falsa.
I think it should be Disneyland está en California.
The correct answer is A. Ella es una companera de clase.
This sentence literally means - She is a classmate.
B is incorrect because it means - They are from California. C is incorrect because it means - His name is Mr. Martin. D is incorrect because that means - What's your name?
For #3 you could put La gente en el centro comercial nos entiende. (The people at the mall understand us.)
I don't know about #4 sorry.
But hopefully this helps