What Is the Underlying Purpose of Establishing an Allowance for Uncollectible

What is the underlying purpose of establishing an allowance for uncollectible accounts?

A) It allows management to reduce the net profit for the year and, therefore, to pay less income tax.
B) It provides a means for adjusting the accounts receivable control account to be equal to the total of the individual accounts receivable.
C) It enables the expense of bad debts to be matched with the revenues of the year in which the sale was recorded.
D) It gives management the ability to manipulate the amount reported as net profit from year to year.