What does mrs sappletons niece say that causes framton additional distress?

The answer is:

She lives by her own moral code.

She sacrifices herself for her values.

She is forced to make a difficult decision.

In the excerpt from "The Royal House of Thebes," Creon is surprised that Polyneices has been buried against his orders. Antigone has not obeyed him, so she is sentenced to death. She knew she would be punished when she gave burial to her brother, but she considers Creon below the law of the gods. Thus, she decides to give her life in the name of the gods, and accepts death as a consequence.