Explanation:

- Section 125 of the CrPC provides for maintenance to wives, children, and parents who are unable to support themselves.

- Historically, this section had a limit, but it was removed. The law now empowers the court to decide an appropriate amount based on the financial situation of the parties involved.

- The court considers factors such as the income and needs of both the claimant and payer to determine maintenance.

- Option 4: without any limit is the correct answer.