A trial balance has total debits of $21,000 and total credits of $25,500. Which one of the

Question:

A trial balance has total debits of $21,000 and total credits of $25,500. Which one of the following errors would create this imbalance? Explain.
a. A $4,500 debit to Salaries Expense in a journal entry was incorrectly posted to the ledger as a $4,500 credit, leaving the Salaries Expense account with a $750 debit balance.
b. A $2,250 credit to Teaching Fees Earned in a journal entry was incorrectly posted to the ledger as a $2,250 debit, leaving the Teaching Fees Earned account with a $6,300 credit balance.
c. A $2,250 debit to Rent Expense in a journal entry was incorrectly posted to the ledger as a $2,250 credit, leaving the Rent Expense account with a $3,000 debit balance.