Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to take care of swimmer's hair [title] Begin treating your hair as soon as you get out of the pool. [step] Chlorine-which is used to kill bacteria in pool water and keep it swimmable-will strip the natural oils that usually help protect your hair from damage associated with dryness and daily wear. The goal of swimmer's hair treatment is maintaining a healthy level of moisture in your mane.

Ending1: [substeps] Sulfates, which are essential oils in the water, can be purchased at most popular retail and beauty supply stores. [title] Buy a detachable shower head. Ending2: [substeps] The first must-do step is to shower immediately after your swim. Chemicals are beginning to damage your hair as soon as you jump in. Ending3: [substeps] If you're swimming, bring along a water-resistant head cap. This is known as a vi% and clears the buildup of water on your hair. Ending4: [substeps] Warm up the water in the morning or evening. Take a shower and let the water heat up until it feels warm enough to provide moisture for the hair you're treating.

Answer format: ending1/ending2/ending3/ending4