Mary incurred a $20,000 nonbusiness bad debt last year. She also had an $18,000 long-term capital gain last year. Her taxable income for last year was $25,000. During the current year, she unexpectedly collected $12,000 on the debt. How should Mary account for the collection?
a.$0 income
b.$11,000 income
c.$8,000 income
d.$12,000 income
e.None of these choices are correct.