Driving a motor vehicle often requires reaction time.

Driving a motor vehicle often requires LESS or STANDARD reaction time.

Explanation:

While driving on road it requires less or standard reaction time because while driving the motor vehicle on road the situation to make instant decision may occur at any time. While driving on road there may happen that the person driving in front of you may apply brakes instantly.

Due to this you have to instantly react for that situation and apply brakes in your car also.

If our reaction time is not standard or less then in that case the our car will travel closer to the car front of us and then if we even apply hard push on the brakes then also the car will not stop and it will skid towards the another car and it may occur collision with it.

So it always requires less or standard reaction time

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).