Which Strategy Is Most Effective for Developing Self-Control

Which strategy is most effective for developing self-control?

A) Evaluate each life element in need of control, and exert effort in each of those areas simultaneously.
B) Pick a date in the future to begin changing bad habits, and become more purposeful after that date.
C) Identify one or two areas in need of change, and develop routines to meet desired goals in those areas.
D) Practice mindfulness meditation until a conception of self-control guides your thoughts and actions.