28. Suppose the government increases her expenditures which are totally financed by the increase of taxes. In the short run, what happens to the real interest rate, the price level, and real GDP?
(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 rises.
(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 falls.