According to Erikson's life-span development theory, the stage of human development which Julie is at is:
This refers to the various stages through which a person develops as a result of the reconciliation of nature and nurture in relation to his current environment.
With this in mind, we can see that because Julie is confused about the choice she has to make, then she is in the Identity vs Identity Confusion stage.
Read more about human development here:
https://brainly.com/question/1126017