Exhibit 5.10 -Refer to Exhibit 5.10,which Shows Two Upward-Sloping Linear Supply Curves

Multiple Choice

Exhibit 5.10

-Refer to Exhibit 5.10,which shows two upward-sloping linear supply curves that pass through the origin.The price elasticity of supply between $20 and $40 on the supply curve S' is _____

A) 0.
B) infinity.
C) 1.
D) 2.
E) 10.