Answer:
b. Debit Accounts Receivable $900, Credit Service Revenue $900
Explanation:
In this scenario, services was performed; invoice was issued. Thus revenue must be recorded in June, though customer has not paid yet
a. Debit Accounts Receivable $900, Credit Deferred Revenue $900
False, because Deferred Revenue is about the revenues received in advance for services which have not yet been performed or goods which have not yet been delivered.
b. Debit Accounts Receivable $900, Credit Service Revenue $900
True, because revenue was recorded but customer has not paid yet.
c. Debit Cash $900, Credit Deferred Revenue $900
False, because customer has not paid yet
d. Debit Cash $900, Credit Service Revenue $900
False, because customer has not paid yet