On January 1, 2016, Woodstock, Inc. purchased a machine costing $40,000. Woodstock also paid $1,000 for transportation and installation. The expected useful life of the machine is 6 years and the residual value is $5,000.How much is the annual depreciation expense assuming use of the straight-line depreciation method?A. $6,100.B. $6,000.C. $5,950.D. $5,750.