Once the state of alarm due to COVID-19 has ended and the new normal has been restored, are the occupants of a private vehicle circulating on public roads obliged to wear masks?

A)Yes, even if all its occupants live in the same household.
B)Yes, when one third of the vehicle's occupants are over 70 years old.
C)No, when the only occupant of the vehicle is the driver.Correct
# Explanation
Once the state of alarm due to COVID-19 has ended, the use of masks in private vehicles is not mandatory when only the driver is traveling. However, the regulations may require masks if there are several occupants who do not live in the same household, since this implies greater proximity and risk of contagion in shared enclosed spaces.