The correct answer to this open question is the following.
Unfortunately, you forgot to attach the speech. Without the speech, we do not know its content. Just you. President Obama delivered thousands of speeches during his presidency.
You also forgot to attach the options for this question.
However, trying to help you, we did some deep research and can comment on the following.
Probably you are talking about President Barak Obama´s speech about the death of Trayvon Martin an African American young man, who was shot in Sanford, Florida, on February 26, 2012.
President Obama's purpose in this speech was "to give his opinion on the Trayvon Martin case and condemn the jury’s verdict of “not guilty.”
In that speech, President Barak Obama expressed his personal feelings about the incident. Journalists covering the speech say that the US President took this speech so personal, expressing comments comparing Martin with his life as an adolescent.