When the interest rate in an economy increases, it is likely the result of either: (Hint: draw a graph of the loanable funds market). Select one: O a. an increase in the government budget surplus or a decrease in its budget deficit. O b. a decrease in the government's budget surplus or an increase in its budget deficit. O c. an increase in the government budget surplus or its budget deficit. O d. a decrease in the government budget surplus or its budget deficit