The Following Data Are Available Relating to the Performance of Tiger

The following data are available relating to the performance of Tiger Fund and the market portfolio: $\begin{array}{lcc} & \text {Tiger } & \text { Market } \\ &&\text { Portfolio }\\\text { Average return } & 18 \% & 15\% \\\text { Standard deviations of returns } & 25\% & 20\% \\\text { Beta } & 1.25 & 1.00 \\\text { Residual standard deviation } &2 \% & 0 \%\end{array}$

The risk-free return during the sample period was 7%.
What is the information ratio measure of performance evaluation for Tiger Fund?

A) 1.00%
B) 8.80%
C) 44.00%
D) 50.00%