Suppose that planned savings is less than planned investment at the current level of real gdp. which of the following will occur? a. there will be an unplanned decrease in business inventories, and in the next period, real gdp will increase. b. there will be an unplanned decrease in business inventories, and in the next period, real gdp will decrease. c. there will be an unplanned increase in business inventories, and in the next period, real gdp will decrease. d. there will be an unplanned increase in business inventories, and in the next period, real gdp will increase. e. none of the above answers correctly describe what will happen in the economy.