In general you want to be a bit more concise in forming a thesis statement. Usually you should shoot for between 1 and 2 sentences summarizing your argument in a concise way so that it is easily understandable to the reader. I would take what you have written and look for your main argument and try and put that in 1 to 2 sentences.
Answer:
The image shows the impressive potential of a just society.
Explanation:
This is the answer because if you read the excerpt from the speech. this answer choice makes a lot more sense than the rest of the choices provided. In the speech, he is clearly talking to the society.
Answer: the unjust or prejudicial treatment of different categories of people or things, especially on the grounds of race, age, or sex.
"victims of racial discrimination"
They’re all a theme in the novel, but the one that stands out the most would be A, sin.