Budget-deficit borrowing from the public most likely:

This choice is incorrect because increased government borrowing typically raises the demand for money in the loanable funds market, which in turn pushes interest rates higher, not lower. A lower interest rate scenario would generally occur if the supply of funds increased significantly or if the demand decreased, neither of which is usually the case during extensive government borrowing.

This option is incorrect because budget-deficit borrowing does not directly influence export levels. While changes in interest rates can affect currency value and thus exports, the primary relationship here involves domestic investment and interest rates rather than export dynamics.

This choice is also incorrect. In fact, higher interest rates resulting from increased borrowing can lead to reduced spending and investment in the economy, which may lower inflation in the long run. However, the immediate effect of budget-deficit borrowing is typically an increase in interest rates, which is not synonymous with lowering inflation.