Which combination is most useful for successful entrepreneurship?

Correct answer: A good idea, planning, and continuous effort

Successful entrepreneurship requires an opportunity or useful idea, a realistic plan, and persistent effort to turn the plan into results. Planning helps estimate resources, customers, costs, and actions, while continuous effort helps an entrepreneur learn and overcome difficulties. Thus, option B is correct. Laziness, producing without customers, or spending without records cannot provide a sound foundation for a venture.