Refer to the graph shown. Assume the market is initially in equilibrium at point b in the graph but the imposition of a per-unit tax on this product shifts the supply curve up from S0 to S1. The lost consumer surplus of this tax is equal to the area:

A. cdb.
B. cab.
C. P2P1bc.
D. P1(P2 − t)ab.


C. P2P1bc.