Answer:
d. the quantity demanded of one good changes in response to a change in the price of another good
Step-by-step explanation:
Cross price elasticity of demand measures the responsiveness of quantity demanded of good A to changes in price of good B.
Price elasticity of demand = percentage change in quantity demanded / percentage change in price
If cross price elasticity of demand is positive, it means that the goods are substitute goods.
Substitute goods are goods that can be used in place of another good.
If the cross-price elasticity is negative, it means that the goods are complementary goods.
Complementary goods are goods that are consumed together
Example 1
If the percentage change in good A is 10% and the percentage change in quantity demanded of good B is -20%. Cross price elasticity = -20%/ 10% = -2. the goods are complementary goods
Example 2
If the percentage change in good A is 20% and the percentage change in quantity demanded of good B is 80%. Cross price elasticity = 80%/ 20% = 4. the goods are substitute goods goods