Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

At the beginning of 2009, Glass Manufacturing purchased a new machine for its assembly line at a cost of $600,000. The machine has an estimated useful life of 10 years and estimated residual value of $50,000. How much depreciation would Glass take in 2009 for financial reporting purposes under the double-declining balance method?
Option A:$60,000.
Option B:$110,000.
Option C:$120,000.

Answer: C