The correct answer is the following.
The characters in the story of Cosette and the stranger are the following.
In that part of the story of the novel <u>“The Miserables”, written by Victor Hugo</u>, the man who tells Fantine that he is going to take care of Cosette, her daughter, is Jean Valjean, one of the main characters of the story. Jean Valjean had spent many years in prison. Cosette was the daughter of Fantine. She is only 8-years-old. The girl served in the house of her owners, The Thenardiers. They exploited her and she suffers so much. The stranger, Jean Valjean, asks the Thenardiers how much for getting the girl. Ambitious as they were, the couple asks Valjean fifteen hundred francs. Valjean gave them the money and took Cosette with him.