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Jack owns a pumpkin patch and has been selling pumpkins for $10. As Halloween approaches, he worries about having too many unsold pumpkins, so he lowers the price by 20%. If the price elasticity for pumpkins is 1.5, how many more pumpkins will Jack sell?
a) 25% more
b) 10% more
c) 30% more
d) 13.3% more