Correct Option: 4 - Section 257 Cr. P.C.

• Section 257 of the Cr. P.C. deals with the withdrawal of a complaint in cases falling under Chapter XX of the Code, which relates to summons cases.
• It allows the complainant to withdraw the complaint, with the consent of the court, before the case is heard in trial.
• If the complaint is withdrawn, the court may dismiss the case, but it has to take into account the stage of the proceedings and the facts presented.
• This section ensures that a complainant can withdraw a case at the early stage if they choose to do so.