It was just one of the MANY reasons that resulted in the 2nd WW. Maybe if they hadn't been so harsh towards Germany and blamed them for the cause of WW1 then the 2nd one most likely wouldn't have happened.
I know a lot of history of Dr.King himself. When he said let 'Let freedom ring" he's using Anaphora.
We would not be able to hangout with our different colored friends... - Hope this helps...
In my opinion it would be A