Answer: The answer is (d) Debit Insurance Expense, $2,400; credit Prepaid Insurance, $2,400.
Explanation: Please note that the insurance premium paid should be $4,800 and not $6,200, as was provided in the question.
Prepayment is an advance payment for services not yet enjoyed. When the prepaid insurance premium was made, the following entries were raised: Debit Prepaid insurance premium $4,800; Credit Cash $4,800. It is then amortize to expense (income statement) based on the tenor.
Since Harrod Company paid for 4-month insurance premium, the monthly amortization would be $1,200 per month ($4,800 divided by 4 months). Then, note that November and December amortization charges have not been accounted for, therefore we have 2 months amortization pending ($1,200 * 2 months = $2,400), which were appropriately adjusted for as above.