Which well-known gas law explains why car manufacturers recommend adjusting the pressure of your tires before you start on a trip?

• Amontons' law
  In the 17th century, French physicist Guillaume Amontons was the first to observe that the pressure of a gas is directly proportional to its temperature. The law named in his honor applies to tires, as you know if you've ever checked air pressure before and after a trip. Driving a car causes the tires to flex, which heats up the air in the tires and increases the pressure.
• Boyle's law
  In the 17th century, French physicist Guillaume Amontons was the first to observe that the pressure of a gas is directly proportional to its temperature. The law named in his honor applies to tires, as you know if you've ever checked air pressure before and after a trip. Driving a car causes the tires to flex, which heats up the air in the tires and increases the pressure.
• Gay-Lussac's law
  In the 17th century, French physicist Guillaume Amontons was the first to observe that the pressure of a gas is directly proportional to its temperature. The law named in his honor applies to tires, as you know if you've ever checked air pressure before and after a trip. Driving a car causes the tires to flex, which heats up the air in the tires and increases the pressure.