Answer:
She disobeyed his command and buried her brother.
Step-by-step explanation:
As the text explains, “To bury the dead was a most sacred duty, not only to bury one's own, but any stranger one might come upon. But this duty, Creon's proclamation said, was changed in the cause of Polyneices to a crime. He who buried him would be put to death.” When Creon learns that Antigone has defied his order, he has her killed.