Which of the following has served most recently as Chairman of the Board of Governors of the Federal Reserve System?

If the real interest rate rises, then the

A) quantity of saving decreases and there is a movement down along the supply of loanable funds curve. B) quantity of saving increases and there is a movement up along the supply of loanable funds curve. C) supply of saving increases and the supply of loanable funds curve shifts rightward. D) supply of saving decreases and the supply of loanable funds curve shifts leftward. E) demand for investment decreases and the demand for loanable funds curve shifts leftward.

Let MUa and MUb stand for the marginal utilities of apples and bagels. Let Pa and Pb stand for their prices. The general necessary condition for consumer equilibrium is

A) MUa = MUb. B) MUa = MUb and Pa = Pb. C) MUa/Pa = MUb/Pb. D) MUa/MUb = Pb/Pa.