Joan bought a business machine for $15,000 on January 1, 2011, and later sold the machine for $12,800 when the total allowable depreciation is $8,500. The depreciation actually taken on the tax returns totaled $8,000. Joan must recognize a gain (or loss) of:
A) no gain or loss.
B) ($3,200).
C) $6,800.
D) $6,300.