For each separate case below, follow the 3-step process for adjusting the prepaid asset account at December 31. Step 1: Determine what the current account balance equals. Step 2: Determine what the current account balance should equal. Step 3: Record the December 31 adjusting entry to get from step 1 to step 2. Assume no other adjusting entries are made during the year. a. Prepaid Insurance. The Prepaid Insurance account has a $4,700 debit balance to start the year. A re- view of insurance policies and payments shows that $900 of unexpired insurance remains at year-end. b. Prepaid Insurance. The Prepaid Insurance account has a $5,890 debit balance at the start of the year. A review of insurance policies and payments shows $1,040 of insurance has expired by year-end. c. Prepaid Rent. On September 1 of the current year, the company prepaid $24,000 for 2 years of rent for facilities being occupied that day. The company debited Prepaid Rent and credited Cash for $24,000.