Can you answer that for me and explain why?

12. A company earns $40,000 by providing services in the current period for cash that was received in a prior period. In posting this transaction to the T-accounts, which of the following will be required? | Post $40,000 on the left side of the Cash T-account. Post $40,000 on the left side of the Deferred Revenue T-account. Post $40,000 on the right side of the Deferred Revenue T-account. Post $40,000 on the right side of the Cash T-account. None of the choices are correct. E