Jones Company bought a Drill Press on January 1, 2015 to use in production of Aluminum fishing boats. The press cost $5,000; has a useful life of 8 years and 100,000 boats; a salvage value of $1,000. In year four, 10,000 boats were produced. Depreciation is recorded annually on December 31. 1. What is year 4 depreciation expense under Units of Production? a. 400 b. 500 c. 1,000 d. 2,000 e. none of the above