Refer to the following adjusted trial balance after the first year of operations.

Accounts	Debit	Credit
Cash	$ 1,600
Accounts Receivable	8,200
Office Supplies	500500
Equipment	19,600
Accumulated Depreciation - Equipment		$ $2,000
Accounts Payable		1,700
Salaries Payable		800
Unearned Revenue		500500
Common Stock		3,900
Dividends	3,000
Service Revenue		49,100
Salaries Expense	21,000
Supplies Expense	2,400
Depreciation Expense Equipment	1,700
Total	$58,000	$58,000

What will the balance of the Retained Earnings account be after the closing entries are posted?

A. $27,900

B. $24,000

C. $21,000

D. $ 27,000