PART A: What is President Obama's purpose in this speech?

A
to give his opinion on the Trayvon Martin case and condemn the jury’s verdict of “not guilty”
B
to contextualize the Trayvon Martin case and reconcile people's reactions to the ruling
C
to talk about his own experiences with prejudice and how adversity gave him opportunities to grow
D
to contextualize the Trayvon Martin case and condemn the jury’s verdict of “not guilty”