Answer: President Lincoln's tone in his inaugural address to the American people was persuasive and reassuring.
But, since that's not an option the best option would be hopeful and impassioned!
If you look at the reasons Tom Robinson suspected Maybella's father of beating her, that should help. Have a look at Tom's story of what happened and all the evidence from his side, including Maybella having bruises on the right side of her face, and her father being left handed, and no medical help was called for even though she was covered in bruises.
I hope this helps a little :)