0|show" data-onresultcheck="*redo|*.na|hide@*correct|*.na|hide@*reset|*.na|hide"> The concept of fairness informs everything from playground quarrels to business negotiations. Now, a study suggests that cultural differences shape when children develop a sense of fairness, with significant differences across countries. Children from seven countries — the United States, Canada, Mexico, Peru, India, Senegal and Uganda — began rejecting unfair deals at different ages between 4 and 15 years old, when tested by researchers. Although children in all of these societies grew to reject deals that put them at a disadvantage, children in three of the countries also grew to reject deals that gave them an advantage. Previous studies with adults have shown that ideas of fairness differ across human societies, says Katherine McAuliffe, a psychologist at Boston College in Massachusetts. “That difference has to start somewhere,” says McAuliffe, an author of the study, published on November 18 in Nature. But the analysis does not draw final conclusions about the specific cultural causes of this difference. “It’s a really impressive, very clean experiment that leaves a lot to think about,” says Philippe Rochat, a developmental psychologist at Emory University in Atlanta, Georgia. 2. What has the study found about some children who were given an advantage?
A、They did not tell other children.
B、They rejected how they were treated.
C、They reported the difference to adults.
D、They differed according to their ages.