The Gurley and Shaw Approach, developed by economists John G. Gurley and Edward S. Shaw, redefines money by emphasizing the role of financial intermediaries (e.g., banks, credit unions, and other institutions) in creating credit that functions as money. Unlike the Conventional Approach, which limits money to currency and demand deposits, or the Central Bank Approach, which focuses on monetary base (currency and reserves), Gurley and Shaw include a broader spectrum of financial assets, such as savings deposits and other near-money instruments, that serve as a medium of exchange or store of value. The Chicago Approach, associated with Milton Friedman, focuses on a broader but still limited definition of money (M1, M2). Thus, the Gurley and Shaw Approach uniquely emphasizes credit extended by various sources, making option (1) correct.