Foster Co. adjusted its allowance for uncollectible accounts at year end. The general ledger balances for the accounts receivable and the related allowance account were $1,000,000 and $40,000, respectively. Foster uses the percentage-of-receivables method to estimate its allowance for uncollectible accounts. Accounts receivable were estimated to be 5% uncollectible. What amount should Foster record as an adjustment to its allowance for uncollectible accounts at year end?
A.	$50,000 decrease.
B.	$10,000 decrease.
C.	$10,000 increase.
D.	$50,000 increase.