American and Chinese Children Were Recruited for a Study

American and Chinese children were recruited for a study.All children were either thirteen years old or five years old.They were first told that a child was happy every day the past week;then they were asked to predict the likelihood that the child would be happy tomorrow.To analyze the data,researchers matched 13-year-old American children's responses to those of the 13-year-old Chinese children.The same was done with the 5-year-old children's responses.Which of the following would be most likely to occur with this analysis?

A) Everyone would equally likely predict that the child would continue to be happy tomorrow.
B) Everyone would equally likely predict that the child would be much less happy tomorrow.
C) Chinese children would predict that the child would continue to be happy tomorrow;American children would predict that the child would be much less happy tomorrow.
D) The difference in predicted likelihood between Chinese and American children has a consistent magnitude throughout the age groups.
E) The difference in predicted likelihood between Chinese and American children is much greater for the 13-year-olds than for the 5-year-olds.