For each separate case, record the necessary adjusting entry. a. On July 1. Lopez Company paid $3,200 for six months of insurance coverage. No adjustments have been made to the Prepaid Insurance account, and it is now December 31. b. Zim Company has a Supplies account balance of $9,000 at the beginning of the year. During the year, it purchases $4,000 of supplies. As of December 31, a physical count of supplies shows $1,800 of supplies available. Prepare the year-end adjusting entries to reflect expiration of the insurance and correctly report the balance of the Supplies account and the Supplies Expense account as of December 31.