At the same speed, the greater the throttle opening, how will the engine load change?

When the throttle opening increases, the intake resistance decreases, the intake volume and exhaust volume increase, and more air enters the cylinder during the intake stroke. For gasoline engines, the fuel injection quantity is controlled by the intake air quantity to achieve the best fuel-air mixing ratio, so the fuel injection quantity is also increased, the engine power is increased, and the load is increased; For diesel engines, the fuel injection quantity is only related to the plunger position, and the throttle opening only affects its maximum power. The answer is: a.