The Payment of John's Debt to Kirsten Is Guaranteed by John's

Multiple Choice

The payment of John's debt to Kirsten is guaranteed by John's personal property. Kirsten is most likely to perfect her interest by​

A) ​attaching a bright label to John's property.
B) ​calculating the precise amount of John's debt.
C) ​correcting grammatical errors in the parties' written agreement.
D) ​filing a financing statement with the appropriate authority.