Cost less residual value is $48,000, allocated over eight years at $6,000 per year; the schedule contains no market-value input.
This divides full cost by eight, ignores the $4,000 residual value, and then treats carrying amount as an unsupported appraisal.
This computes one year's expense but ignores that three full years have elapsed in the cumulative balance and carrying amount.
The useful-life estimate is eight years, not the three years elapsed; elapsed time determines cumulative allocation, not the denominator.
Answer: A
Depreciable amount is $52,000 minus $4,000, or $48,000. Dividing by eight years gives $6,000 annual depreciation. After three full years, accumulated depreciation is $18,000, carrying amount is $52,000 minus $18,000, or $34,000, and remaining depreciable amount is $48,000 minus $18,000, or $30,000. The schedule does not compute market value.