An extract from Gordon Ltd's accounts is given below: '000 1,780 Sales Cost of sales Opening inventory Purchases Closing inventory 44 820 154 710 1,070 800 270 Gross profit Expenses Operating profit Which of the following statements is true? Select one answer: O Gordon Ltd made a gross profit margin of 60% and an operating profit margin of 25% Gordon Ltd made a gross profit margin of 40% and an operating profit margin of 25% O Gordon Ltd made a gross profit margin of 40% and an operating profit margin of 15% Gordon Ltd made a gross profit margin of 60% and an operating profit margin of 15%