The Three Diagrams Below Each Show a Supply Curve for Oil

Multiple Choice

The three diagrams below each show a supply curve for oil tankers over a relatively short period of time. FIGURE 13-3
-Refer to Figure 13-3.Consider oil tankers as a factor of production (for example,for the production of gasoline) .Which diagram shows the most mobility of this factor of production?

A) diagram 1
B) diagram 2
C) diagram 3
D) none of the diagrams
E) each diagram shows mobility