Martin Company Purchases a Machine at the Beginning of the Year

Multiple Choice

Martin Company purchases a machine at the beginning of the year at a cost of $60,000. The machine is depreciated using the double-declining-balance method. The machine's useful life is estimated to be 4 years with a $5,000 salvage value.
-Depreciation expense in year 4 is:

A) $3,750.
B) $30,000.
C) $5,000.
D) $2,500.
E) $13,750.