Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to set up a tent [title] Lay a tarp down before putting up your tent. [step] When setting up your tent, it's important to put a barrier in between the ground and the bottom of your tent to protect it from gathering moisture. A good-quality plastic or vinyl tarp should accompany any tent.

Ending1: [substeps] Fold the tarp into the relative shape of the tent, but slightly smaller. You don't want any part of the tarp to hang out beyond the edge of the tent, otherwise it'll collect water underneath in case it rains. Ending2: You can test the tarp for moisture before lining it up with the ground. If the tarp is not thin enough, the dirt will pool. Ending3: Roll up your tarp so that it's level across the top of your tent. [title] Place your fire source strategically into the ground. Ending4: This sort of material acts as a thin layer of insulating material for your tents to keep them warm and moist. [title] Mark the location where you are leaving the tent.

Answer format: ending1/ending2/ending3/ending4