Answer:
b) Generativity
Step-by-step explanation:
Erikson proposed a theory of psychosocial development that goes through the individual lifespan.
Generativity versus stagnation is the seventh of eight stages of Erik Erikson's theory of psychosocial development.
This stage takes place during during middle adulthood (ages 40 to 65 yrs). People going through this stage have a feeling to create or nurture things that will outlast them, often having mentees or creating positive changes that will benefit other people (like children or grandchildren). Through this generativity we develop a sense of being a part of something bigger.
When people don't find a way to contribute to the world, they become stagnant and feel unproductive.
In the example, we can see that Greg's age correspond to the stage of "Generativity vs. stagnation".
He works as an anesthesiologist and his wife and kids are healthy and he is satisfied with his life. Thus, we can see that he most likely is going through the crisis in a positive way so he's experiencing Generativity. (by helping others as a doctor and passing his knowledge to his kids).
Thus, he is most likely experience generativity.