Refer to the Graph Shown

Refer to the graph shown. With an effective price floor at P_f, the effect is an implicit tax on:

A) suppliers shown by area C and a subsidy to consumers of that area.
B) suppliers shown by area B and a subsidy to consumers of that area.
C) consumers shown by area C and a subsidy to suppliers of that area.
D) consumers shown by area B and a subsidy to suppliers of that area.