Final answer:
During the action stage of the transtheoretical model, individuals actively modify their behavior and take steps to achieve their desired outcome.
Step-by-step explanation:
The action stage of the transtheoretical model is characterized by c. You change your behavior and your surroundings to pursue your goal. During this stage, individuals actively modify their behavior and take steps to achieve their desired outcome. This may involve making changes to their environment, seeking support from others, or adopting new strategies to overcome obstacles.