8. A movement along the demand curve for toothpaste would be caused by A) a change in the price of toothbrushes. B) a change in consumer income. C) a change in the price of toothpaste. D) a change in population.

8. A movement along the demand curve for toothpaste would be caused by
A) a change in the price of toothbrushes.
B) a change in consumer income.
C) a change in the price of toothpaste.
D) a change in population.

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