Answer:
a. Debit to Prepaid Insurance of $10,000
* Option for this question was missing so I have attached a similar question with this answer and answered accordingly.
Explanation:
Insurance purchased for four years was actually prepaid insurance on May 1, Year 2.
The company expensed all amount by positing following entry ( which is a wrong entry)
DR.   Insurance Expense  $12,000
Cr.    Cash                          $12,000
It should be entered as follow:
DR.   Prepaid Insurance   $12,000
Cr.    Cash                          $12,000
At the end of the year 2 8 months has been passed for which $2,000 is accrued and it will be recorded, as all the amount is charged to the expense account we will adjusted the remaining amount of $10,000 to correct this mistake.
Now at the end of year 2 the correct entry which will settle the expense and prepaid insurance as well is as follow.
DR.   Prepaid Insurance   $10,000
Cr.    Insurance Expense  $10,000