Final answer:
In 'A Christmas Carol' by Charles Dickens, Ebenezer Scrooge is known for his initial cold-heartedness and undergoes a major transformation to become kind and generous.
Step-by-step explanation:
The character from Charles Dickens' A Christmas Carol who is known for their initial cold-heartedness and subsequent transformation is A) Ebenezer Scrooge. Scrooge is depicted as a miserly and cold-hearted old man at the beginning of the story, who despises Christmas and all forms of happiness and generosity. The transformation of Ebenezer Scrooge is a central theme of the novel, as he is visited by the ghosts of Christmas Past, Present, and Yet to Come, which eventually lead him to become a kinder, gentler person, who values human connection and the spirit of Christmas.