Blackhawk Corporation estimates that $30,000 of their accounts made on sale is uncollectible for the current accounting period. How would the $30,000 be reported in Blackhawk Corporation's financial statements?

a. Recognition of an uncollectible account expense in operating expenses on the income statement

b. Recognition of a loss in non-operating items on the income statement

c. Recognition of a liability in the current liability section of the balance sheet

d. no recognition is necessary