Rosario Is a Nurse in a Large Metropolitan Hospital

Rosario is a nurse in a large metropolitan hospital. There are some shifts that are very busy and very stressful. Which of the following would be the best example of a problem-focused coping strategy to help her deal with these stressful times?

A) Allow herself to have a cigarette now and then, even though she quit smoking six months ago.
B) Determine times of the week or year that are usually busier, so that she can prepare for them
C) Take up jogging or some other form of physical exercise when she's not at work.
D) Switch to a low-carb diet to avoid gaining unwanted weight.