Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to level a camper [title] Pick a flat place to park. [step] Try to find a parking spot that is as flat as possible. Leveling is meant to compensate for minor ground unevenness, so parking on a slope will still be uncomfortable and unsafe.

Ending1: [substeps] If the ground slopes to the camper's side, reposition the camper so the ground slopes towards the front or back end. [title] Clear out the area before leveling the camper. Ending2: Parking on a slope will also make it more difficult for you to get used to the trees and terrain changes that will make leveling difficult. [substeps] Steep slopes generally have a greater risk of falling, which makes them ideal for leveling flat. Ending3: [title] Call a friend if you are unable to access the area where you plan to start leveling. [step] This will ensure your camper will be level within the area and won't cause trouble. Ending4: Parked parking is safer and smoother, in addition to making sure your camper is safe for long-term use. [substeps] Some campers may have great reason to have difficulty leveling their camper.

Answer format: ending1/ending2/ending3/ending4