During the third week of treatment, the spouse of a patient in an alcoholism rehabilitation program ...

During the third week of treatment, the spouse of a patient in an alcoholism rehabilitation program says, After this treatment program, I think everything will be all right.. Which remark by the nurse will be most helpful to the spouse?
 
  a. It is good that you're supportive of your spouse's sobriety and want to help maintain it..
  b. While sobriety solves some problems, new ones may emerge as one adjusts to living without alcohol..
  c. It will be important for you to structure life to avoid as much stress as you can. You will need to provide social protection..
  d. Alcohol is a lifelong disease of self-destruction. You will need to observe your spouse's behavior carefully..