In the post-closing trial balance, only Retained Earnings is included.
Here's a brief explanation of each option:
- Dividends: This account is closed to Retained Earnings and is not included in the post-closing trial balance.
- Sales Revenue: This account is also closed at the end of the accounting period and is not included in the post-closing trial balance.
- Retained Earnings: This is a permanent account that is included in the post-closing trial balance.
- Salaries Expense: This account is closed out to Retained Earnings and is not included in the post-closing trial balance.
Therefore, the correct answer is Retained Earnings.