Which of the following is not a point of difference between Keynes and classical economists?
O The validity of Say's Law, Keynes said it is demand, not supply, that determines income and output
O The flexibility of prices of wages; Keynes argued that prices and wages may be sticky, especially downward
O The interest rate as the determinant of how much households save; Keynes said the amount of saving depends on income
O The role of government in the economy; Keynes believed government should take a laissez-faire approach to managing the macroeconomy during economic downturns