In the Parable of the Unjust Steward (Luke 16:1-13), what is the primary lesson Jesus intends to convey regarding the use of 'worldly wealth'?

A Worldly wealth should be used primarily for personal gain and security. B Worldly wealth is inherently evil and should be rejected by believers. C Worldly wealth should be used wisely and generously to gain eternal rewards. D Worldly wealth is irrelevant to one's spiritual standing with God.