Which of the following would an increase in the budget deficit most likely cause? Select one: O a shortage of loanable funds at the original interest rate, which would lead to falling interest rates. O a shortage of loanable funds at the original interest rate, which would lead to rising interest rates. O a surplus of loanable funds at the original interest rate, which would lead to rising interest rates. O a surplus of loanable funds at the original interest rate, which would lead to falling interest rates