Explanation:

- Option 1: ICSID

- The International Centre for Settlement of Investment Disputes (ICSID) provides international arbitration and conciliation services, primarily to resolve investment disputes.

- Option 2: OPEC

- The Organization of the Petroleum Exporting Countries (OPEC) is a union of oil-producing countries. They regulate oil production to manage oil prices globally.

- Option 3: IFC

- The International Finance Corporation (IFC) is part of the World Bank Group. It focuses on developing the private sector in developing countries.

- Option 4: CRISIL

- CRISIL is a global analytical company. They offer ratings, research, risk, and policy advisory services.

Your understanding of option 4 is accurate.