Answer:
Zach and Tuila are demonstrating generativity.
Explanation:
Generativity: In psychology, the term has been used by Erik Erikson in his theory of psychosocial development. It is defined as an individual's tendency to make a mark on the world & environment around him or her by showing care towards the other person and developing or accomplishing specific things that lead to make the world a better place. It usually develops in people around the middle age, and individuals generally show conscious concern, commitments, beliefs, behaviors, etc.
In the question above, These changes reflect the fact that Zach and Tuila are demonstrating generativity.
