What is the most frequent cause of skidding?

A)Using the brakes abruptly.Correct
B)Carrying the vehicle lightly loaded.
C)Power steering.
Skids are caused by the loss of grip of the wheels. The most frequent causes are:
- The abrupt or inadequate use of the vehicle controls such as accelerator, brake and steering. (Main cause).
- Excessive speed with worn tires or low pressure, shock absorbers and brakes in poor condition, and slippery pavement.
- The abrupt or inadequate use of the vehicle controls such as accelerator, brake and steering. (Main cause).
- Excessive speed with worn tires or low pressure, shock absorbers and brakes in poor condition, and slippery pavement.