Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to take a solo train journey [title] Pack light and take a carry on. [step] Avoid bringing several large, heavy bags with you when you're traveling solo. Hauling them around can be exhausting and may slow you down.

Ending1: Instead, bring light bags that can hold slightly more weight than the multi-pack variety if you want to stay on-size. [substeps] If you're always packing electronics, don't bring any. Ending2: You want to remain as mobile as possible and be able to move quickly whenever necessary. Bring a moderately sized carry-on bag that is easy for you to move with. Ending3: Instead, find a carry-on that is lightweight so you are more comfortable, but not heavy. [substeps] You should bring one gallon per person on the train. Ending4: For smaller or busier trains, a lighter sack may be the best option. [title] Change your clothing to keep in warm weather.

Answer format: ending1/ending2/ending3/ending4