Refer to the Information Provided in Figure 3

Multiple Choice

Refer to the information provided in Figure 3.4 below to answer the question(s) that follow. Figure 3.4
-Refer to Figure 3.4. If consumer income increases, the demand for tuna fish sandwiches shifts from D₀ to D₁. This implies that tuna fish sandwiches are a(n)

A) normal good.
B) inferior good.
C) substitute good.
D) complementary good.