Answer:
Researchers define grief is an active process on which people after traumatic experiences recover slowly after at least 1 year and each person is different; but over time posttraumatic growth can also lead to possitive outcomes such as personal strength.
That's why the example above "best exemplifies the Change theme of grief"; in this case the traumatic experience turned Cain into an assertive person managing his finances, pushing him to aquire a positive Change.
Step-by-step explanation: