If the cross elasticity of demand for potato chips and pretzels equals 1.5,

Selected Answer:

potato chips and pretzels must be complements.

.potato chips and pretzels must both be luxury goods.

either potato chips or pretzels must be a luxury good, and both may be luxury goods.

potato chips and pretzels must be substitutes.

potato chips and pretzels must be complements.

none of the options provided