Belle Co. determined after 4 years that the estimated useful life of its labeling machine should be 10 years rather than 12 years. The machine originally cost $46,000 and had an estimated salvage value of $1,000. Belle uses straight-line depreciation. What amount should Belle report as depreciation expense for the current year?
A. $4,500
B. $5,000
C. $3,750
D. $3,200