While skating in the park, Ali fell down on the concrete path and scraped his knee. It's bleeding a little bit. What has happened to his skin?

Answer: B. He got a cut or a scrape (a wound).

Explanation:
When we fall and hurt our skin, it can get a small cut or a scrape. It's important to clean it with soap and water to wash away the dirt and germs. Then, we put a band-aid on it to keep it clean while it heals. In a few days, new skin grows underneath, and the scrape goes away.

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