Moped, Inc. purchased machinery at a cost of $$22,000$ on January $1,2014.$ The expected useful life is $5$ years and the asset is expected to have salvage value of $$2,000.$ Moped depreciates its assets using the straight$-$line method. What is the firm$$s depreciation expense for the year ended December $31,2015?$

Group of answer choices

$$4,000$

$$4,400$

$$8,000$

$$8,800$