Barenboim Studied the Descriptions That Children Provided of Other People

Barenboim studied the descriptions that children provided of other people.According to that research, which of the following best captures the changes to the descriptions that children use after 6 years of age?

A) Behavioural comparisons increased, and then declined rapidly after age 9.
B) Psychological constructs increased, and then declined rapidly after age 9.
C) Psychological comparisons declined steadily, and continued to decline after age 9.
D) Behavioural comparisons initially declined, and then increased sharply after age 9.