What is the order of actions a driver should perform before slowing down?

1. ATurn the head backwards, press the brake pedal to slow down and glance in the mirrors at the end.
2. BPress hard on the brake pedal, in order to inform the driver behind that you are starting to slow down.
3. CLook in the mirrors, release the accelerator pedal and use the brakes or gears.
4. DSignal to the driver behind with your hand, look in the mirrors to see his reaction and slow down.

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