Multiple Choice
Which one of the following events shifts the demand curve for grape jelly to the right?
A) an increase in income if grape jelly is a normal good
B) a decrease in the price of strawberry preserves,a substitute for grape jelly
C) a decrease in the price of grape jelly
D) an increase in the price of peanut butter,a complement of grape jelly
E) a decrease in the population
Correct Answer:

Verified
Correct Answer:
Verified
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