Why is it effective to write a letter to basketball?

Read this passage from the online article “top 10 reasons why everyone is doing yoga” by kathryn livingston. what type of propaganda is the author using? why are so many people doing yoga these days? there must be more to it than endorphins; there has to be a deeper reason why 20 million plus americans have fallen in love with this venerable practice. here is my top ten list – and if you’re a yogi, i’m sure you can think of more.

Which fits best in the empty box above?

Look up "racial violence in the early 1960's" and write information about it and find 3 sources about it