To drive more safely...
A)the vehicle must be in perfect condition but the driver does not need to be.
B)the driver must be in perfect condition but the vehicle does not need to be.
C)both the driver and the vehicle must be in perfect condition.Correct
# Explanation
To drive safely it is essential that **both the driver and the vehicle are in perfect condition**. The driver must be rested, attentive and in good physical and mental condition, while the vehicle must have all its systems (brakes, tires, lights, etc.) working properly. Both elements are equally important and complementary to ensure safe driving.