Dorchester Company purchased a new van for floral deliveries on July 1, 2021. The van cost $20,000 with an estimated life of 5 years and $5,000 residual value at the end of its useful life. The double diminishing-balance method of depreciation will be used. What is the balance of the accumulated depreciation account at the end of 2022? Select one: A. $4,800 B. $4,000 C. $10,400 D. $6,400