Answer:
Answer is Option A: do nothing, as PMSIs are automatically perfected.
Step-by-step explanation:
PMSI stands for Purchase-Money Security Interest which is a legal claim that a lender can do to repossess the property financed with its loan. He may also demand repayment in cash in case the borrower defaults. But in case of consumer goods, PMSI in consumer goods is not required to be filled because it is automatically perfected without filling.
In the given scenario when a refrigerator is bought and the store create PMSI in the refrigerator so that Sung can pay it over time, they have to do nothing do get PMSI perfected.