The Following Data Pertain to an Investment Proposal $$\begin{array} { | l | l |} \hline \text { Projected Salvage Value } & \$ - 0 \\\hline\end{array}$$

The following data pertain to an investment proposal:
$\begin{array}{|l|r|}\hline \text { Present Investment Required } & \$ 27,130 \\\hline \text { Annual Cost Savings } & \$ 5,000 \\\hline \text { Projected life the investment } & 10 \text { years } \\\hline\end{array}$
$$\begin{array} { | l | l |} \hline \text { Projected Salvage Value } & \$ - 0 \\\hline\end{array}$$
What would be the internal rate of return? (Ignore income taxes in this problem.)

A) 5.426%.
B) 13.0%.
C) 54.26%.
D) 542.6%.