Very knowledgeable. I will keep this in the records.
The answer is C, because it informs that since people are sharing information very quickly through the internet, it is <em>also bringing young people closer</em><em> </em><em>together than ever before</em>. In A we read that they are bringing people closer together, but the teenagers are <em>only included</em>. In B it is just mentioned that the tenagers are <em>generally brought together</em>.
Answer is C) that people should not simple stand by and let injustice occur.
One negative aspect of post-civil war America was the loss of many soldiers