Which of the following modifications to the list of assets and liabilities below would result in a positive net worth? Home owned $105,000. Mortgage owed $100,000. Car valued at $26,000. Car loan of $22,000. Investment fund of $4,500. Savings of $1,500. Credit card balance of $15,000. a. Lowering mortgage by $1,000. b. Increasing investment fund by $500. c. Adding $100 to savings. d. All of the above.