Corp. purchased a machine for $130,000 on September 1, 2016. The estimated service life is ten years with a $10,000 residual value. Brian records year depreciation based on the number of months in service. Depreciation expense fo the year ended December 31, 2016, using straight-line depreciation, is: A. $12,000 B. $4,000 C. $3,000 D. $4,333