According to the CDL Drivers Manual, why should you limit the use of your horn?
A. On vehicles with air brakes, it can use air pressure that may be needed to stop.
B. You should keep both hands tightly gripping the wheels at all time.
C. It can startle other drivers.
Answer: C. It can startle other drivers.
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.