Answer: b. Debit Interest Expense, $1,500.
Step-by-step explanation:
On the date of maturity in 2019, the journal entry will look something like this:
Date Account title Debit Credit
March 2019 Note Payable $100,000
Interest Payable $3,000
Interest expense $1,500
Cash $104,500
The interest payable is the portion of interest that accrued in the 4 months in 2018 which was in the previous period so would have to be recorded as a liability instead of an expense.
The interest expense is for the interest accrued in 2019 which would be for 2 months and is:
= 100,000 * 9% * 2/12
= $1,500