Answer:
Mexico's government did not take the step of banning all driving on Sundays to reduce air pollution. So the correct option is 3.
Step-by-step explanation:
Mexico has instituted various policies to improve air quality. They include improving and encouraging public transportation, equipping buses with cleaner-burning fuels, and strengthening vehicular emissions control with advanced technologies and surveillance programs, to identify high emitting as well as non-compliance vehicles.
Another unique program, called Hoy No Circula, bans drivers from using their vehicles one weekday per week based on the last digit of the vehicle’s license plate. For example, vehicles with a license plate ending in “5” or “6” can not be used on Mondays. Similarly on Wednesday: no driving if the license plate ends with 3 or 4. The restrictions are in place on weekdays between 5:00 am and 10:00 pm and affect both residential and commercial vehicles.
So there is no program that bans complete driving on Sundays.