She saw more than he 'd ever realized , and had a greater understandng of his purpose than most . He 's sent her to war , but she had not been half so blind as those who 'd come before . It worried him , with knowledge there was regret and the question of good and evil , right and wrong . I do n't believe in black and white , when all I see if a world trapped in eternal gray .

Question: WHat is the reason for regrets ?
Answer: Everything is either good or evil .He was worried .None of the above choices .Everything is either right or wrong .