Answer:
b.multiplying the interest rate by the carrying amount (book value) of the note at the beginning of the period.
Step-by-step explanation:
To solve for interest doing
principal x rate x time
being time and rate express inthe same metric. Which means, if the rate is annual we express time as complte year or portion of years.
If the rate is monthly we express time in months.
We will multiply the principal beginnign balance as that is the one which has been exposed to interest during the time period.