Refer to the graph shown. Assume the market is initially in equilibrium at point j in the graph but the imposition of a per-unit tax on this product shifts the supply curve up from S0 to S1. The amount of revenue the government will collect from this tax is equal to the area of:

A. triangle ach.
B. triangle egi.
C. rectangle bkjd.
D.  rectangle chie.


D.  rectangle chie.