The correct answer to this question would be alternatives C)"He emphasizes that the injustices he describes are affecting fellow humans who have emotions." and E)"He highlights the cruelty of the US government and white Americans."
Satanta, aslo known as White Bear, was a Kiowa war chief, who lived from 1820 to 1878. He fought the First Battle of Adobe Walls, and earned enduring fame for his use of an army bugle to confuse troops in battle.
As you can see, his assertive and passionate tone helps him speak to the emotions of the listeners, appealing to their feelings as fellow humans with emotions, to try and make them understand the hardships he's been through.