I believe the answer you are looking for is C. limitaron which means limited. Translated it would be Although they limited the use of automobiles in the city, the air will remain contaminated. I hope this helps
Answer:
¡Presta atención a la clase!
¡Ten paciencia!
¡Ve a la biblioteca!
Ven a mi casa
¡Di la verdad!
¡Sal del carro!
Explanation:
Can you type out the audio? I could totally help you out then!