题目内容：
Which group of students tended to be swayed by the decoy, according to the study?
A． The no-watching-instructions group that had been given glucose in their lemonad B． The no-watching-instructions group having been given sugar substitute in their lemonad
C． The mental-energy-exerting group that had been given glucose in their lemonad
D． The mental-energy-exerting group that had been given sugar substitute in their lemonad
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