My answer here is correct but incomplete, please help me find out what's wrong with my answer

Required information [The following information applies to the questions displayed below.] Sye Chase started and operated a small family architectural firm in Year 1. The firm was affected by two events: (1) Chase provided $25,000 of services on account, and (2) he purchased $2,800 of supplies on account. There were $250 of supplies on hand as of December 31, Year 1. Required a. b. & e. Record the two transactions in the accounts. Record the required year-end adjusting entry to reflect the use of supplies and the required closing entries. Post the entries in the T-accounts and prepare a post-closing trial balance. (Select "a1, a2, or b" for the transactions in the order they take place. Select "c" for closing entries. If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) Accounts Receivable Beg. Bal. Beg. Bal. Supplies o 2,800 a1 25,000 2,550 b. End. Bal. 25,000 End. Bal. 250 Accounts Payable Retained Earnings Beg. Bal. Beg. Bal. 2,800 a2 I 2,550 25,000 cl End. Bal. 2,800 End. Bal. 22,450 Service Revenue Supplies Expense Beg. Bal. Beg. Bal. cl 25,000 25,000 a1 2,550 2,550 End. Bal. End. Bal