8.Last October, due to an early frost, the average price for a pumpkin increased by 10 percent compared to the average pumpkin price in previous Halloween seasons. As a result, the quantity demanded county-wide decreased from 2 million to 1.5 million." Based on this statement, it is certain that the
(A)demand curve for Halloween costumes shifted leftward.
(B)demand curve for pumpkins shifted leftward.
(C) price elasticity of demand for pumpkins decreased from its value in previous years.
(D) total revenue from the sale of pumpkins decreased.
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