Received $10000 cash from a customer invoiced 2 months ago. The journal entry to record the transaction is:

Select one:

a. debit, cash $10000 and credit, accounts receivable $10000.

b. debit, cash $10000 and credit, revenue $10000.

c. debit, accounts receivable $10000 and credit, revenue $10000.

d. debit, revenue $10000 and credit, cash $10000.