An Economy's Long-Run Equilibrium Is

An economy's long-run equilibrium is

A) the equilibrium that would occur if prices were perfectly flexible.
B) the equilibrium that would occur if prices were perfectly flexible and always adjusted immediately.
C) the equilibrium that would occur if prices were perfectly flexible and always adjusted immediately to preserve full employment.
D) the equilibrium that would occur if prices were perfectly fixed to preserve full employment.
E) the equilibrium that would occur if prices were perfectly fixed at the full employment point.