Answer:
We need to write at least 3 things that you can do to preserve the natural environment.
I will write to them in English and then provide a Spanish version of them.
1) Recycling
Reciclar.
2) Control the water consumption, try to not waste it.
Controlar el consumo de agua, tratar de no desperdiciarla.
3) Throw some high contaminant things, like batteries, in the designated places for their treatment.
Tirar cosas muy contaminantes, como baterias, en lugar designados para su tratamiento
Honestly, it is not clear if Mario truly wants to, as the focus on the question is on Rosa. “Mario: Hola Rosa, ¿quieres estudiar para la clase de matemáticas hoy?” (Mario: Hello, Rosa, do you want to study for Maths’ class today?).
Thus, I believe the answer for this question is false. No further evidence has been given that the statement is true.
The correct answer is C) cuidar de.