Multi-choice problem: Continue writing the next sentence in this paragraph:

How to care for teenage skin 
Wash face twice daily. 
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.

Choose from: (i). Look in the mirror and feel how your skin feels. It should feel soft to the touch after you washed it. (ii). If you, say, find that you have acne, scrub it off with soap and warm water. Gently exfoliate with a washcloth or loofah. (iii). 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. (iv). 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.
(iv).