Which of the following passages best shows the change in grete's behavior towards her brother? a. from then on she never failed to open the door slightly every evening and morning and look briefly in on him. at first she would call to him as she did so with words that she probably considered friendly, such as "come on then, you old dung-beetle! " or "look at the old dung-beetle there! " b. gregor's sister no longer thought about how she could him but would hurriedly push some food or other into his room with her foot before she rushed out to work in the morning and at midday, and in the evening she would sweep it away again with the broom, indifferent as to whether it had been eaten or — more often than not — had been left totally untouched. c. his sister began to play; father and mother paid close attention, one on each side, to the movements of her hands. drawn in by the playing, gregor had dared to come forward a little and already had his head in the living room. d. gregor's sister would often write and tell him about this reading, but maybe his father had lost the habit in recent times. it was so quiet all around too, even though there must have been somebody in the flat. "what a quiet life it is the family lead", said gregor to himself, and, gazing into the darkness, felt a great pride that he was able to provide a life like that in such a nice home for his sister and parents.