Answer:
C. $12 million.
Explanation:
The computation of the accumulated depreciation be at the end of year five under the sum-of-the-years'-digits method is given below:
Accumulated depreciation is
= $16.5 million × [(10 + 9 + 8 + 7 + 6) ÷ 55]
= $12 million
hence, the accumulated depreciation be at the end of year five years is $12 million
Therefore the correct option is c.