Mazaya Company bought equipment on January 1, 2011. The equipment cost R.O.180,000 and had an expected residual value of R.O.30,000. The life of the equipment was estimated to be 6 years. The accumulated depreciation for the year ending 2013, using the straight-line method of depreciation is: Select one: a. R.O.50,000. b. R.O.45,000. c. R.O.75,000. d. R.O.25,000.