Explanation:

- Increase in Bank Rate: This raises the cost of borrowing, reducing consumer spending and business investments, thereby helping to control inflation.

- Selling of Securities in Open Market: When central banks sell securities, they withdraw money from the economy, decreasing money supply and curbing inflation.

- Increase in Cash Reserve Ratio: By increasing the CRR, banks are required to hold more reserves, reducing their capacity to lend money, which in turn helps in reducing the money supply within the economy.

- All the above: This option is correct because all these measures can help in correcting inflation by reducing the money supply and controlling demand.

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