Answer:
Leah is in the fourth stage, or Industry vs Inferiority stage.
Explanation:
In this stage, children are more worried about being useful than about playing. If they do not feel useful, they develop feelings of inferiority, hence the name of the stage.
Leah is in this stage because she is trying to be useful, and succeeding in doing so. According to Erik Erikson theory, this will help Leah become a self-confident individual in the future. She will probably do well in life.