29. As in question 28, what happens to the real interest rate, the price level, and real GDP in the long run?
(A) the real interest rate increases, the price level increases, and real GDP rises.
(B) the real interest rate falls, the price level increases, and real GDP unchanged.
(C) the real interest rate increases, the price level falls, and real GDP rises.
(D) the real interest rate increases, the price level increases, and real GDP unchanged.