||a. What is the relationship between the natural rate of unemployment and frictional, structural, and cyclical unemployment? b. What would happen to both unemployment and the normal rate of unemployment if: i. cyclical unemployment increases. ii. Frictional unemployment increases. iii. Structural unemployment falls and cyclical unemployment rises by the same amount. iv. Structural unemployment increases and cyclical unemployment decreases by a larger amount. v. Frictional unemployment decreases and structural unemployment increases by the same amount.