That is true, because she was the only one to understand the importance of divine laws as opposed to Creon's civil laws. He forbade her to give her brother a proper burial because he was a traitor, but she understood that it needed to be done so that he could be allowed to go to heaven, perhaps. The other people were afraid of Creon, and didn't want to interfere with his laws.
I would think b because its good to keep a record. If it is constantly changing, then its good to have the record in case it changes back to one you already had.