-Refer to the Above Figure $P _ { 2 }$
B)

Multiple Choice

-Refer to the above figure.An external cost exists.The amount of that cost is represented by

A) $P _ { 2 }$ .
B) $\mathrm { Q } _ { 1 }$ .
C) the vertical distance between point A and the supply curve S1.
D) the distance between C and A.