Clark has become much more confident and courageous. He's learned to face challenges head-on and stand up for what he believes in.
Well, by the end, Clark has transformed in several ways. He's become more empathetic, understanding others' feelings better. Also, he's gained a lot of wisdom and has a better sense of his purpose in life.
Clark has undergone significant changes. He's grown more responsible and has developed better problem-solving skills. Moreover, his relationships with others have deepened and become more meaningful.