5. Esther, Inc., a lawn care service company, mowed the yard of a customer on September 20 and sent the customer a $500 invoice. The customer received the $500 invoice on September 23. The customer completed and mailed a check to Esther, Inc. on October 1. The $500 check was received by Esther, Inc. on October 4. If Esther, Inc. uses the Accrual Basis of accounting, then on which date did Esther, Inc. eam the revenue? a October 4 b. September 23 cSeptember 20 d. October 1