Final answer:
The correct action when entering a curve too fast is to accelerate moderately to help maintain control of the car and prevent skidding.
Step-by-step explanation:
If you have entered a curve too fast, the correct action to take would be to accelerate moderately. This helps to balance the forces on the car and can prevent skidding or losing control due to a sudden change in speed. Braking hard could cause the tires to lose grip, leading to a skid. Similarly, accelerating quickly could overwhelm the tires' traction and cause a loss of control. Therefore, the correct answer is to accelerate moderately to help the car navigate through the curve safely.