Final answer:
In Charles Dickens' novel, several characters self-sacrifice to help the Manette family, including Sydney Carton and Miss Pross.
Step-by-step explanation:
In Charles Dickens' novel, A Tale of Two Cities, several characters self-sacrifice to help the Manette family. Sydney Carton is one such character who sacrifices his own life to save Charles Darnay, Lucie Manette's husband. Despite his own love for Lucie, Carton puts aside his personal happiness for the sake of his friends. Another character who self-sacrifices is Miss Pross, Lucie's loyal and devoted servant, who fights off Madame Defarge to ensure the safety of the Manettes. These acts of selflessness show the depth of loyalty and love in the novel.