Please choose the correct ending to complete the given sentence: Work World: [header] How to clean a cow [title] Secure the cow outside with a halter or rope tied to the collar. [step] If possible, tie the cow to a fence or the side of a building and not a single post. That way, the cow can't walk in circles or get tangled in the rope.

Ending1: Also, try to wear gloves whenever you are handling the cow so it doesn't get stung. [title] Know how to clean a cow's ears and neck. Ending2: If this is your first time milking a cow, but you are in full-swing yourself, then holding the cow against a fence or building can be particularly uncomfortable. This is because calf overs are less steady and require frequent halts and stops. Ending3: [title] Make sure the barn or building has air conditioning. [step] If the room is near open windows, turn the fan on to warm out the air quickly if possible. Ending4: [substeps] You can use a cow-washing chute instead, which holds the cow's head in place, leaving you room to wash its body. If your cow has never been washed before or has a poor disposition, try tying it with a shorter rope so it is less likely to get tangled.

Answer format: ending1/ending2/ending3/ending4