Last Year, Green Corporation Incurred the Following Expenditures in the Development

Last year, Green Corporation incurred the following expenditures in the development of a new plant process: $$\begin{array} { l r } \text { Salaries } & \$ 250,000 \\\text { Materials } & 90,000 \\\text { Utilities } & 20,000 \\\text { Quality control testing costs } & 40,000 \\\text { Management study costs } & 5,000 \\\text { Depreciation of equipment } & 18,000\end{array}$$ During the current year, benefits from the project began being realized in May.If Green Corporation elects a 60 month deferral and amortization period, determine the amount of the deduction for the current year.

A) $48,000
B) $50,400
C) $54,667
D) $57,067
E) None of these.