How has the world suffered from genocide?

Suppose you need to verify how to correctly use commas. you open your english textbook and scan the chapter titles. in which one would you most likely find the information you need? ; ; ; ; that's the ? im having truble with

According to the article "clemente's impact wanes in puerto rico 40 years after his death," what happens in puerto rico in 2012 to celebrate the anniversary of clemente's 3000th hit?

Why does the green knight laugh at their response