Roughly what was the change in Columbia's per capita GDP between 1960 and 2011?

Based on the figure below. Starting from long-run equilibrium at point C, a tax cut that increases aggregate demand from AD to AD1 will lead to a short-run equilibrium at point ________ and eventually to a long-run equilibrium at point ________, if left to self-correcting tendencies. 

A. D; C B. B; C C. B; A D. D; B

In the Keynesian model a recessionary gap will develop if there is:

A. stabilization policy. B. an increase in average labor productivity. C. too little spending. D. too much spending.