The following transactions for the month of march have been journalized and posted to the proper accounts. mar. 1 the business received $ 10 comma 000 cash and issued common stock to stockholders. mar. 2 paid the first month's rent of $ 700. mar. 3 purchased equipment by paying $ 1 comma 000 cash and executing a note payable for $ 6 comma 000. mar. 4 purchased office supplies for $ 750 cash. mar. 5 billed a client for $ 13 comma 000 of design services completed. mar. 6 received $ 9 comma 000 on account for the services previously recorded. what is the balance in accountsreceivable? a. $ 13 comma 000 b. $ 9 comma 000 c. $ 6 comma 000 d. $ 4 comma 000