Answer: $129,500
Step-by-step explanation:
According to the Accrual Basis in Accounting, revenue and expenses should only be recognised when goods have been delivered.
On the December 31, 2020 Sandra's Boutique had 1,850 gift certificates outstanding but these had been sold already to people during the year for $70.
This means that they have been paid for a service that they have not given (they provide the service when the GIFT certificate is renewed).
They cannot therefore recognize the revenue as Revenue yet and have to defer it.
The amount to be Deferred will therefore be,
= 1,850 * $70
= $129,500