The pairs of goods for which the cross-price elasticity would be postive are pens and pencils.
<h3>What is cross-price elasticity?</h3>
Cross price elasticity of demand measures the percentage change in the quantity demanded of good A to percentage change in the price of good B.
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.
Here are the options of this question:
a. peanut butter and jelly
b. bicycle frames and bicycle tires
c. pens and pencils
d. college textbooks and iPods
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