单项选择题

According to this passage, various types of packaging come into existence to ______.

A．meet the needs of consumers
B．suit all kinds of products
C．enhance the market position of products
D．introduce new products
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单项选择题
The author is critical mainly of ______.
A．dishonest packaging
B．inferior packaging
C．the changes in package size
D．exaggerated illustrations on packages
单项选择题
Consumers are concerned about the changes in package size, mainly because ______.
A．they hate to see any changes in things they are familiar with
B．the unit price for a product often rises as a result
C．they have to pay for the cost of changing package sizes
D．this entails an increase in the cost of packaging
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