The depreciation deduction for year 11 of an asset with a 20 -year useful life is \(\$ 4,000\). If the asset's salvage value was estimated to be zero and straight-line depreciation was used to calculate the depreciation deduction for year 11, what was the asset's initial cost?

a. \(\$ 42,105\)

b. \(\$ 67,682\)

c. \(\$ 72,682\)

d. \(\$ 80,000\)