IMCO ie.9] The balance on the plant and machinery account at cost on January 20X1 was 10,000. On 1 May plant costing 1,500 was sold. New machinery costing 6,000 was purchased on 1 September. Depreciation is charged, month-by-month, on a straight-line basis at 10% per annum and amounts for the year ended 31 December 20X1 to: (a) 1,250 (b) 1,100 (c) 1,050 (d) 1,200