7. A year-end review of Accounts Receivable and estimated uncollectible percentages revealed the following: Days Outstanding Accounts Receivable Est. Percent Uncollectible 1-30 days $65,000 2% 31-60 days $42,000 5% 61-90 days $24,000 12% Over 90 days $9,000 50% A.$10,780. B.$9,780. C.$1,300. D.$11,780.