Final answer:
When pulling a trailer down a steep hill, it is best to drive in a low gear and keep in the right lane for control and safety. These actions correspond to option (c) both of the above.
Step-by-step explanation:
When pulling a trailer down a long steep hill, the correct method to ensure safety and control over the vehicle is to drive in a low gear and keep in the right lane. Driving in a low gear helps to use engine braking to slow down the vehicle, which is necessary to prevent the brakes from overheating and failing. Keeping in the right lane is essential for safety, as it allows faster vehicles to pass and it is often the lane designated for slower-moving vehicles, which would include those pulling a trailer.
In relation to the answer choices provided and the context of towing safety:
- a. a person standing up from a seated position
- b. a car accelerating while driving
- c. both of the above
- d. none of the above