A 10 percent increase in the price of root beer causes a 5 percent increase in the quantity demanded of orange soda. This means that

a. root beer and orange soda are substitutes
b. root beer and orange soda are complements
c. the cross-price elasticity of demand is elastic
d. the cross-price elasticity of demand is equal to 2
e. the cross-price elasticity of demand is equal to -2


A

Economics

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