A machine with an estimated service life of five years and an expected salvage value of $$\$ 5,000$$ was purchased on January 1,2014 , for $$\$ 50,000$$. The amount to be recorded for depreciation for years 2014,2015 , and 2016 , respectively, using the $200 \%$ declining-balance method will be:
a. $$\$ 20,000 ; \$ 12,000 ; \$ 7,200$$.
b. $$\$ 18,000 ; \$ 10,800 ; \$ 6,480$$.
c. $$\$ 16,667 ; \$ 13,333 ; \$ 10,000$$.
d. $$\$ 10,000 ; \$ 8,000 ; \$ 6,400$$.