Please choose the correct ending to complete the given sentence: Youth: [header] How to care for teenage skin [title] Wash face twice daily. [step] Acne and oily skin is a common problem among teens. It's perfectly normal to feel upset or stressed about your skin but with a good skin regimen, you can calm your skin and reduce blotchiness.

Ending1: Look in the mirror and feel how your skin feels. It should feel soft to the touch after you washed it. Ending2: [substeps] If you, say, find that you have acne, scrub it off with soap and warm water. Gently exfoliate with a washcloth or loofah. Ending3: When you're at school, wash your face twice daily, using gentle soap and warm water. When you're at home, you can wash your face twice monthly. Ending4: The start of a good regimen is to find a good skin cleanser than matches with your skin type. For example, if you have acne, a cleanser with salicylic acid will help reduce the amount of pimples.

Answer format: ending1/ending2/ending3/ending4