The following transactions for the month of March have been journalized and posted to the proper accounts.

Mar. 1 Martinez invested $9,000 cash in his new design services business.

Mar. 2 Paid the first month's rent of $800

Mar. 3 Purchased equipment by paying $3,000 cash and executing a note payable for $5,000

Mar. 4 Purchased office supplies for $750 cash

Mar. 5 Billed a client for $10,000 of design services completed

Mar. 6 Received $8,000 on account for the services previously recorded

What is the ending balance in the Service Revenue account?

	$19,000
	$9,000
	$10,000
	$8,000