Assuming that the ABC Corporations total liabilities at the year ended at 31 December 2011 are 170, 000 and the liabilities of the firm to trade creditors at the same date amount to 20,000, determine the amount of ABC long term liabilities at the year ended at 31 December 2011:

1. 129,000
2. 143,000
3. 100,000
4. 150,000
5. 179,000