Applying Lewin's Force Field Model to Stress, Which of the Following

Applying Lewin's force field model to stress, which of the following is not a restraining force that acts to counter stressors and inhibit pathological results?

A) Practicing better time management
B) Including healthy levels of physical activities, sleep, and social activities in your time
C) Building a network of strong relationships in your community
D) Using on-the-spot coping strategies such as imagery or deep breathing