The Following Transactions Have Been Journalized and Posted to the Proper

Multiple Choice

The following transactions have been journalized and posted to the proper accounts.March is the first month of business operations for the sole proprietorship. Mar. 1 The business received $\$ 7,000$ cash from the owner in excharige for capital.
Mar. 2 Paid the first month's rent of $\$ \mathbf { 8 0 0 }$ .
Mar. 3 Purchased equipment by paying $\$ 3,000$ cash and executing a note payable for $\$ 4,000$ .
Mar. 4 Purchased office supplies for $\$ 750 \mathrm { cash }$ .
Mar. 5 Billed a client for $\$ 12,000$ of design services completed.
Mar. 6 Received $\$ 6,000$ on account for the services previously recorded What is the ending balance in the Service Revenue account?

A) $13,000
B) $7,000
C) $12,000
D) $6,000