Which of the following thesis statements is the most effective?

My thesis is about that the boy Roger shouldn't have stolen the old lady's purse

The main theme of Thank You Ma'am is be nice even if you're not doing so good.

The main theme of the short story "Thank You Ma'am" by Langston Hughes is the importance
of compassion for others.

The main theme of the story is when Roger tries to steal Mrs. Jones's purse, she takes him
upstairs to give him something to eat and he feels better.