The correct answer is option 3: Global money transfer system. The SWIFT, which stands for The Society for Worldwide Interbank Financial Telecommunication, is an organization that provides a secure and standardized messaging platform for financial institutions to send and receive information about financial transactions. It does not function as a global financial intelligence agency, a global terror finance detection system, or a global stock-market information sharing system.

SWIFT enables banks and other financial institutions to securely communicate and exchange information about international money transfers. It provides a secure network for transmitting payment instructions, ensuring that funds are transferred accurately and efficiently across borders. This system is widely used by banks and financial institutions globally and has become an integral part of the international banking infrastructure.

It is important to note that while SWIFT facilitates the transfer of funds, it does not actually transfer the funds itself. It is a messaging system that allows financial institutions to exchange information related to financial transactions, including details about the sender, recipient, and amount of money involved.

In summary, SWIFT is a global money transfer system that facilitates the secure communication and exchange of information between financial institutions for international financial transactions.