On January 1, 2019, Mango Company purchased a new truck for $88,200. Its estimated useful life is seven years or 200,000 miles. The trucks expected salvage value is $4,200. During 2019, the truck was driven 20,000 miles. Assuming units-of-production depreciation, 2019 depreciation expense is:

Select one:

A. $12,600

B. $8,400

C. $12,000

D. $10,584