Answer: success stage
Step-by-step explanation:
Transtheoretical model of change is model that focus on how people
changes and decisions they made.
The model emphasize that changes do not just occur but rather takes a process and time to occur.
For Carolyn to have maintained her body for 5 years she's not just taking the decision but rather at the peak of her success story where all she need is maintenance.
To reach success she had already started by taking the decision and working towards it and she had moved from that stage to success.