Table 4-13 The Demand Schedule Below Pertains to Sandwiches Demanded Per Week

Multiple Choice

Table 4-13
The demand schedule below pertains to sandwiches demanded per week.
-Refer to Table 4-13. Suppose x = 1. Then it must be true that

A) Harry and Jake have the same income, which is lower than Darby's income.
B) if sandwiches and potato chips are complements for Harry, then those two goods are also complements for Jake.
C) Harry's demand curve is identical to Jake's demand curve.
D) All of the above are correct.