【单选题】You observe that an increase in the price of salsa decreases the demand for tortilla chips and increases the demand for potato chips. You can conclude that (您观察到,莎莎的价格上涨会降低玉米饼的需求,并增加对薯片的需求。你可以得出结论——中...
A.
salsa and tortilla chips are substitutes.莎莎和玉米饼是替代品。
B.
salsa and potato chips are complements.莎莎和薯片是补充。
C.
tortilla chips and potato chips are complements.玉米片和薯片是补充。
D.
salsa and tortilla chips are complements.莎莎和玉米饼芯片是补充。