The Figure Given Below Shows the Demand and Supply Curves

The figure given below shows the demand and supply curves of automobiles. Figure 13.3 In the figure,
D: Demand curve of automobiles
S: Supply of automobiles prior to the tax
S+t: Supply of automobiles after the tax
-According to Figure 13.3,the market attains equilibrium before the tax at:

A) point d.
B) point a.
C) point b.
D) point c.
E) point e.