题目内容
（请给出正确答案）
提问人：网友w*****2
发布时间：2022年3月26日 08:59
[单项选择题]
In 2011, many shoppers chose to avoid the frantic crowds and do their holiday shopping from the comf...What is the purpose of the author’s experiment（）
A．To test his hypothesis about online shopping.
B．To find out people’s reaction to his recent book.
C．To find ways to increase the sale of his new book.
D．To try different approaches to sales promotion.
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