Why does the author use the image of a "Parthian shaft" in the excerpt? A. Marilla is still angry even after she has left Anne's room. B. Marilla expects a long conflict with Anne over Mrs. Rachel's insults. C. Marilla is satisfied that she won the argument with Anne. D. Marilla's final hurtful words are delivered as she is leaving Anne's room.Why does the author use the image of a "Parthian shaft" in the excerpt? A. Marilla is still angry even after she has left Anne's room. B. Marilla expects a long conflict with Anne over Mrs. Rachel's insults. C. Marilla is satisfied that she won the argument with Anne. D. Marilla's final hurtful words are delivered as she is leaving Anne's room.