In the Parable of the Unjust Steward (Luke 16:1-13), what specific action does the steward take to secure his future after being dismissed?

A He embezzles more funds to create a personal safety net. B He shrewdly reduces the debts owed to his master by his master's debtors. C He pleads with his master for forgiveness and reinstatement. D He attempts to blackmail his master by threatening to reveal his financial secrets.