please help explain what is wrong with my answar

The accounting records of Bryant Architects include the following selected, unadjusted balances at March 31: Accounts Receivable, $1,500; Office Supplies, $500; Prepaid Rent, $2,600; Equipment, $10,000; Accumulated Depreciation Equipment, $0, Salaries Payable, $o; Unearned Revenue, $600; Service Revenue, $4,800; Salaries Expense, $1,500; Supplies Expense. $0; Rent Expense, $0; Depreciation Expense-Equipment, $0.(Assume all balances are normal balances.) Date Accounts and Explanation Debit Credit (a) Mar 31 Accounts Receivable 400 400 Service Revenue To accrue Service revenue. Unearned Revenue (b) Mar 31 100 100 (c) Mar 31 300 300 (d) Mar 31 500 Service Revenue To record service revenue that was collected in advance Supplies Expense Office Supplies To record office supplies used. Salaries Expense Salaries Payable To accrue salaries expense. Rent Expense Prepaid Rent To record rent expense. Depreciation Expense-Equipment Accumulated Depreciation Equipment To record depreciation on equipment. 500 (e) Mar. 31 650 650 (Mar. 31 150 150 Office Supplies Unearned Revenue Salaries Expense Mar. 31 Mar, 31 Mar. 31 300 (C) (b) b 100 (d) 500 300 Bal. Bal. 100 Bal. 500 Supplies Expense Prepaid Rent Mar. 31 650 (0) Mar. 31 (c) 300 650 Bal. Bal. 300 Equipment Rent Expense Mar. 31 Mar 31 Demodocs example Video Etext pages Office Supplies Unearned Revenue Salaries Expense Mar. 31 Mar 31 Mar. 31 300 (C) (b) 100 (d) 500 300 Bal. Bal 100 Bal. 500 Prepaid Rent Supplies Expense Mar. 31 Mar. 31 650 (e) (c) 300 650 Bal. Bal. 300 Equipment Rent Expense Mar. 31 Mar 31 Demodocs example Video Etext pages