Assume there is a decrease in wages, a decrease in the cost of oil, and a decrease in in tax rates. Based on these changes, which of the following is correct? The price level will decrease, any change in real GDP is uncertain, and any change in unemployment is uncertain. Real GDP will decrease, unemployment will increase, and any change in the price level is uncertain. Real GDP will increase, unemployment will decrease, and any change in the price level is uncertain. The price level will increase, any change in real GDP is uncertain, and any change in unemployment is uncertain.