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——中文由在线翻译而来,仅供参考.下同.)
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。