During an economic​ recession, A. the bond demand and supply curves both shift to the left and the equilibrium interest rate usually falls. B. the bond demand curve shifts to the​ left, the bond supply curve shifts to the​ right, and the equilibrium interest rate usually rises. C. the bond demand curve shifts to the​ right, the bond supply curve shifts to the​ left, and the equilibrium interest rate usually falls. D. the bond demand and supply curves both shift to the right and the equilibrium interest rate usually rises.