Vaughn Manufacturing estimates its annual warranty expense as 3% of annual net sales. The following data relate to the calendar year 2021:

Net sales			$1513000
Warranty liability account
Balance, Dec. 31, 2020			$9000		debit before adjustment
Balance, Dec. 31, 2021			36390		credit after adjustment

Which one of the following entries was made to record the 2021 estimated warranty expense?

a.

Warranty Expense		37810
Retained Earnings (prior-period adjustment)		7580
Warranty Liability				45390

b.

Warranty Expense		45390
Retained Earnings (prior-period adjustment)				7580
Warranty Liability				37810

c.

Warranty Expense		45390
Warranty Liability				45390

d.

Warranty Expense		36390
Warranty Liability				36390