$2(10$ points$)$ Tiffany bought a piece of equipment for $$60,000.$ The equipment has a useful life of $5$ years and a salvage value of $$9,000$ at the end of its useful life. Calculate the depreciation for year $4,$ using double declining balance depreciation $($i$.$e$,=2).$

A$)$ $$3450$

B$)$ $$3960$

C$)$ $$5510$

D$)$ $$5180$