Joseph, Inc. uses the accrual basis of accounting. Joseph's insurance expense account had a $23,000 balance at the end of the year. The prepaid insurance account had a $6,000 balance at the beginning of the year and a $3,000 balance at the end of the year. How much cash was paid for insurance during the year? O$4.000 O$20,000 $21,000 $29,000