问题
单项选择题
In order for effective price discrimination to occur the seller must:（）
A. face a demand curve with a negative slope.
B. maximize revenue by selling at the highest price possible.
C. be able to advertise the product among customers.
答案
参考答案：A
解析：
In order for effective price discrimination to occur, the seller must have a downward sloping demand curve. The seller must also have at least two identifiable groups of customers with price elasticities of demand for the product, and the seller must be able to prevent customers from reselling the product.
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