Answer: C
Explanation: I believe that is C and I hope this is right for you
Is yo conozco Espana! It isn't the second or the last one because se just doesn't fit. And the third one you could technaclly say but its not the correct way.
The correct answer is ( A )
The situation: The air pollution is so bad that the city council is thinking of banning the use of cars in the city on alternate days, depending on the last number on the license plate of the car (even numbers on Mondays, Wednesdays and Friday, odd numbers on Tuesdays, Thursdays and Saturdays)
What should state officials do?
What should local officials do?
What should local citizens have done to maintain and improve the condition of the places?