A company ages its accounts receivable as follows:Age IntervalBalancePercent UncollectibleNot past due$8650001%1-30 days past due1100002%31-90 days past due6500015%91-180 days past due4200060%over 180 days past due1500090%(a)Estimate what the proper balance of the allowance for doubtful accounts should be at fiscal year end.(b)Assuming the allowance for doubtful accounts has a credit balance of $6500 prior to adjustment; prepare the adjusting entry to record uncollectible expense at fiscal year end.(c)Assuming the allowance for doubtful accounts has a debit balance of $4700 prior to adjustment prepare the adjusting entry to record uncollectible expense at fiscal year end.