Exhibit 5-4 ​

Multiple Choice

Exhibit 5-4
​
-Refer to Exhibit 5-4. A movement from S₁ to S₂ could occur if:

A) ​there is an increase in the price of submarine sandwiches.
B) ​there is an increase in the price of potato chips, a complement to submarine sandwiches.
C) ​there is a reduction in the price of sliced beef used to make submarine sandwiches.
D) ​there is an increase in the price of wheat bread used to make submarine sandwiches.