If there is a surplus in the market for loanable funds, the resulting change in the real interest rate a. raises the quantity of loanable funds supplied and reduces the quantity of loanable funds demanded. b. reduces the quantity of loanable funds supplied and raises the quantity of loanable funds demanded c. raises both the quantity of loanable funds supplied and the quantity of loanable funds demanded. d. reduces both the quantity of loanable funds supplied and the quantity of loanable funds demanded.