Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to remove a blood spot from a cotton pillow case [title] Fill a sink or a bucket with cold water. [step] Put the cotton pillowcase inside to completely saturate it. [title] Hold the areas of the pillowcase near the blood spot with each hand, then rub against each other to help loosen the blood.

Ending1: [step] Do not rub the pillowcase due to the water, because using too much pressure could cause serious damage to the bedding. [title] Drain the pillowcase and check the surface of the blood spot with your fingers. Ending2: [title] Lay out the pillowcase on a work area. [title] Pour some table salt or meat tenderizer on the blood spot, and allow to settle for about 20 minutes. Ending3: [title] Fill another sink or bucket with cold water, and do this with the rest of the pillowcase. [title] Use clean hands to rub and wait for the blood to come out. Ending4: [title] Lower the pillowcase to the side so you don't lose air. [step] Allow the pillowcase to drip while it is still wet.

Answer format: ending1/ending2/ending3/ending4