Answer:
a. and d.
Explanation:
Levinson described in his theory of Positive Adult Development the different stages for a person to mature and the expected changes that may happen at particular times during life. Considering that for psychology, early to middle adulthood is defined between the ages of 20-40, Levinson studied in general terms that during these years, it would be expected of a person to be reaching a stable point in their career, just as well as coming to grips of being attached to family members or others vs being separated and pursuing self-development. Contrary to this, would be a person who would just be starting to determine goals or forming a dream/idea about his/her future.
Modern Language Association, which is a style of writing used for college level writing
