Final answer:
Jean Valjean becomes successful by becoming a wealthy businessman, a status he achieves after changing his identity post-parole.The correct option is D.
Step-by-step explanation:
Jean Valjean, a character from Victor Hugo's novel Les Misérables, finds success by becoming a wealthy businessman. This success comes after he breaks his parole and changes his identity, eventually rising to prominence as a factory owner and mayor under the name Monsieur Madeleine. His transition into a legitimate and prosperous life, while continually trying to evade the force of the law, led by Inspector Javert, is a central theme of the story.