On January 1, 20X1. GBP Corp. purchased a machine that cost $950,000 and had a residual value of $50,000. The machine is expected to produce 600,000 units over its service period, If 40,000 units were produced in 20X1 and 60,000 were produced in 20x2, what amount of accumulated depreciation is reported at the end of 20X2 using the activity-based method (rounded to the nearest whole dollar if necessary)? Select one: a $150,000 b. $60,000 c. $100,000 d$90,000 o $158,333