Which detail from "the happy prince" best supports the idea that swallow has developed a caring heart? a" then the swallow came back to the prince. 'you are blind now,' he said, 'so i will stay with you always.'” b"so the swallow flew over the great city, and saw the rich making merry in their beautiful houses, while the beggars were sitting at the gates." c“'i am going to egypt! ' cried the swallow, but nobody minded, and when the moon rose he flew back to the happy prince." d "all the next day he sat on the prince’s shoulder, and told him stories of what he had seen in strange lands."