At home alone late at night, elderly Grace thought she heard a noise in the kitchen. She tiptoed down to the kitchen in the dark, holding a small handgun. Grace saw the doorknob rattle. Very scared by this time, she called out in case it was her daughter trying to come inside. No one answered Grace but the door burst open. Grace fired the handgun. She did not know the person who lay in her doorway. What kind of motive would Grace MOST likely offer for this action? self defense duress ignorance Insanity​