The Three Firms Below Have Five Choices for Pollution Control

Multiple Choice

The three firms below have five choices for pollution control: no controls or four different technologies,W,X,Y and Z.The amount of pollution emitted and the cost of the technologies are shown in the table.
-Refer to the information above.In the absence of either government regulation or private negotiation,the three firms will pick __________ and total pollution will be __________.

A) no controls;8 tons
B) no controls;24 tons
C) W;21 tons
D) X;18 tons
E) Y;15 tons