In the Parable of the Unjust Steward (Luke 16:1-13), what theological principle is Jesus primarily illustrating through the steward's shrewd, albeit dishonest, actions?

A The commendation of dishonesty when serving a higher purpose. B The necessity of using worldly resources wisely and decisively to secure an eternal future. C The justification of unethical behavior for personal gain. D The insignificance of earthly possessions in comparison to spiritual wealth.