On January 1, Year 1, Marino Moving Company paid $48,000 cash to purchase a truck. The truck was expected to have a four year useful life and an $8,000 salvage value. If Marino uses the straight-line method, the amount of depreciation expense recognized on the Year 2 income statement is ________.
a- $4,000.
b- $6,000.
c- $12,000.
d- $24,000.