Millions of children are treated each year for sports-related injuries.

Explanation:

According to the Centers for Disease Control and Prevention (CDC), more than 2.5 million of children are treated for sports-related injuries per year. In other words, millions of children are treated for this accidents.

For most people this is a shocking number, but the reality is that some sports are more dangerous than other, those that require high physical impact are the first on the list.

answer; i believe that the correct answer is (participation);