To make a normal stop on a motorcycle, which of the following should be used?

Using both brakes and downshifting is the most effective way to make a normal stop on a motorcycle. This method ensures optimal control and stability while slowing down. The front brake provides the majority of the braking power, while the rear brake stabilizes the motorcycle and balances the dynamics as it comes to a stop.

By downshifting as you brake, the engine speed is reduced to match the speed of the motorcycle, which prevents the engine from stalling and allows for a smoother stop. This combination of braking and downshifting helps in maintaining traction and control, especially in various road conditions.

The other options would not provide the same level of safety and control. Relying solely on the front brake could lead to skidding or losing control, especially in wet or slippery conditions, while using only the rear brake may not provide sufficient stopping power, as the majority of braking force is generated by the front brake. Thus, the correct approach is to use both brakes and downshift to ensure a safe and effective stop.