Oakland Tax Planning Service bought computer equipment for on January​ 1, 2018. It has an estimated useful life of four years and zero residual value. Oakland uses the straightline method to calculate depreciation and records depreciation expense in the books at the end of each month. Calculate the amount of Depreciation Expense for the​ period, January​ 1, 2018 through September​ 30, 2018, for this equipment.​ (Round any intermediate calculations to two decimal​ places, and your final answer to the nearest​ dollar.)

A. $6,000

B. $6,500

C. $4,500

D. $5,000