There was once a youth named Narkissos who hailed from Thespiae in a land called Boeotia. He was reported to be the most handsome man in all history. Women were so taken by his beauty that they sought to marry him. But Narkissos was known for ignoring their affections and turning them away harshly without kindness or politeness. One day, the nymph Echo saw Narkissos walking through the woods, and she fell completely in love with him. She followed him, hoping to speak to him, but Echo could not speak first without being spoken to and, then, she could only repeat what was said to her. Echo followed Narkissos through the woods, and when the youth heard footsteps behind him, he turned and asked, "Who is there?" Echo responded, repeating what he said, "Who is there?" Narkissos turned and continued walking. After a while, Echo grew tired of following Narkissos and rushed to embrace him. As Narkissos had always before, he turned her away and refused to return her affections. Echo was heartbroken and fled into the woods. She was never heard from again. Nemesis, the goddess of revenge, heard the tale of what happened to Echo, and she decided to punish Narkissos. She forced the youth to fall in love with himself. As Narkissos was wandering through the woods, he caught sight of his own reflection in the pond. He was so in love with his own face that he could not look away, and so he sat there on the bank of the pond. He could never turn away. Eventually, he died, having done nothing but stare at his own beauty. The goddess Hera took pity on him and turned him into a water lily so that he may lean over the water and see his reflection forever. Which theme is evident in the passage? A. Heartbroken people need supportive friends. B. It is easier to be successful if you are beautiful. C. Caring most about yourself can isolate you from others. D. Upsetting others repeatedly is unavoidable.