【正确答案】This is a bar cart illustrating the change in reasons for study according to age. As is shown, there is a gradual decrease in study for career reasons with age. Nearly 80 % of people under 26 study for their career. This percentage gradually declines by 10～20% every decade. Only 40% of 40～49 years old and 10% of over 49 years old are studying for career reasons in late adulthood.
Conversely, study stemming from interest increases with age. There are only 10% of people under 26 studying out of interests. The percentage increases slowly till the beginning of the fourth decade, and gets up dramatically in late adulthood. Nearly same number of 40～49 years old study for career and interest. However, 70% of over 49 years old study for interest in comparison to less than 20% studying for career reasons in that age group.