A child under 12 years old, how many seats will they occupy if travelling in a passenger car?

A child under 12 years old, how many seats will they occupy if travelling in a passenger car?
A)Half a seat as long as 50% of the vehicle's seats, excluding the driver, is not exceeded.
B)One seat.Correct
C)Half a seat as long as they are not more than 7 years old.
A person travelling in a vehicle, regardless of age, will always occupy a full seat.
In the past, minors were counted as half a seat but this has not been the case for years.