B.Interact more with people from different backgrounds. this is correct because that would help people get to know each other better.
Hope this helps:)
I would like to say that it was D. If I am not correct, try asking this in history.
Answer:
Casey at the Bat: A Ballad of the Republic Sung in 1888' is the full title of an American poem written by Ernest Lawrence Thayer. The poem tells the story of the final half-inning of a baseball game. ... Not only is it a love song to the dramatic sport of baseball, but it is a ballad to 'the Republic in 1888'.