Mahube Limited provides the following information relating to inventory for the financial year: Opening inventory on 1 January Purchases on 25 February Purchases on 20 June Purchases on 10 October Total sales 120 units @R100 each 100 units R110 each 150 units @ R120 each 90 units R130 each 300 units at R250 each Based on the Last in First Out (LIFO) method, closing stock for the year would be: OA R16 000 O B. R20 800 OC R16 400 OD. R18 000