Mazaya Company bought equipment on January 1, 2011. The equipment cost R.0.180,000 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: O a. R.0.45,000. b.R.O.25,000 c. R.0.50,000 O d.R.O.75,000