Marshall Enterprises charged the following amounts of overhead to jobs during the year: $20,000 to jobs still in process, $60,000 to jobs completed but not sold, and $120,000 to jobs finished and sold. At year-end, Marshall Enterprise's Factory Overhead account has a credit balance of $5,000, which is not a material amount. What entry should Marshall make at year-end?
a. No entry is needed.
b. Debit Factory Overhead $5,000; credit Cost of Goods Sold $5,000.
c. Debit Cost of Goods Sold $5,000; credit Factory Overhead $5,000.
d. Debit Factory Overhead $5,000; credit Work in Process Inventory $5,000.
e. Debit Factory Overhead $5,000; credit Finished Goods Inventory $5,000.