(Figure: Demand Shift) Which of the Following Factors Would Cause

Multiple Choice

(Figure: Demand Shift) Which of the following factors would cause the change in the figure? Figure: Demand Shift I. an increase in the price of a complement good II. an increase in production costs III. an increase in the price of a substitute good IV. an increase in income for an inferior good

A) I and III only
B) II and IV only
C) III only
D) I, II, and III