Are brakes an active safety device?

A)No, they are a passive safety element.
B)No, they are a mechanical system of the vehicle.
C)Yes.Correct
Active safety systems help the driver reduce the likelihood of an accident occurring. These include, for example, lighting, tyres, brakes, suspension and steering.
The function of the brakes is to progressively reduce the speed of the vehicle or, when it is already stationary, to keep it stopped. They are clearly an active safety element.