Exhibit 1A-10  Multi-Curve Graph Exhibit 1A-10 Represents a Three-Variable Relationship

Multiple Choice

Exhibit 1A-10  Multi-curve graph Exhibit 1A-10 represents a three-variable relationship. As the annual income of consumers rises from $20,000 (line A) to $40,000 (line B) , the result is a(n) :

A) rightward movement along each curve.
B) leftward movement along each curve.
C) leftward shift in curve B to curve A.
D) leftward shift in curve A to curve B.