Micah Bartlett Company purchased equipment on January 1, 2007, at a total invoice cost of \($400,000.\) The equipment has an estimated salvage value of \($10,000\) and an estimated useful life of 5 years. The amount of accumulated depreciation at December 31, 2008, if the straight-line method of depreciation is used, is:

a. \($80,000.\)

b. $160,000.

c. $78,000.

d. $156,000.