Please choose the correct ending to complete the given sentence: Health: [header] How to remove dandruff using vinegar [title] Wash your hair. [step] Don't use a heavy shampoo and conditioner; try to use a citrus-based or tea-tree oil-based product that doesn't strip your scalp of essential oils. [title] Apply a 1 to 1 mixture of vinegar and water to your wet hair.

Ending1: [step] Pouring it slowly over your head, make sure to avoid your eyes. You may want to take a few breaks to work the mixture into your scalp with your hands. Ending2: [step] To neutralize the effects of vinegar, be sure to rinse thoroughly. You want the vinegar to have a coating, and leave to soak into your hair for 15 to 30 minutes before you rinse it away. Ending3: [step] For the best results, leave your hair alone for the entire time of the soak. Your scalp and hair will absorb the vinegar's salicylic acid, allowing the dandruff to loosen. Ending4: [step] Specifically apply 1 part to unwashed hair, but see the example next. [title] Hold your hair out of the water.

Answer format: ending1/ending2/ending3/ending4