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Public-awareness campaigns about the need to reduce single-use plastics can be successful, says researcher Kim Borg of Monash University in Australia, when these campaigns give consumers a choice: for example, Japan achieved a 40 percent reduction in plastic-bag use after cashiers were instructed to ask customers whether ________ wanted a bag.
Which choice completes the text so that it conforms to the conventions of Standard English?
Difficulty: Easy
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