Answer:
The answer is Erik Erikson.
Explanation:
Erik Erikson was a psychologist who developed a structure of psychosocial development, comformed of eight tages. According to Erikson, individuals must overcome a personal crisis in each one of the stages in order to develop as a healthy member of society.
For example, the first stage appears at birth and it's called "Trust vs. Mistrust", in which children must learn to trust adults; and the last one is called "Integrity vs. Despair", appearing at around age sixty, in which older adults must reflect on their lives and feel a sense of satisfaction.
