Children's steady growth, brain maturation, and intellectual advances make middle childhood a time for more question 28 options: a. independence b. conservation c. egocentrism d. peer values

Children's steady growth, brain maturation, and intellectual advances make middle childhood a time for more independence. Solution: A.independence. This childhood time is the time  when children gain their independence and autonomy and gain a sense of autonomy. 

The answer would be b. it is a learned trait

This is a time line from 685 to 978