Within the Parable of the Unjust Steward (Luke 16:1-13), what is the most accurate understanding of Jesus's commendation of the steward's shrewdness?

A Endorsement of dishonest business practices for personal gain. B Approval of manipulating debts to exploit the poor. C An example of how worldly people are often more astute than believers in pursuing their goals. D A call to forgive all debts, regardless of the consequences.