On January 1, year 1, an entity acquires for $100,000 a new piece of machinery with an estimated useful life of 10 years. The machine has a drum that must be replaced every five years and costs $20,000 to replace. Continued operation of the machine requires an inspection every four years after purchase; the inspection cost is $8,000. The company uses the straight-line method of depreciation. Under IFRS, what is the depreciation expense for year 1?

a. $10,000

b. $10,800

c. $12,000

d. $13,200