Find the Critical Value at The $\alpha = 0.05$ Level for the Following Sample, for Testing

Multiple Choice

Find the critical value at the $\alpha = 0.05$ level for the following sample, for testing $H _ { 0 }$ m= 48 versus $H _ { 1 } : m > 48$ .
$\begin{array} { l l l l l l l l l l l l l l } 30 & 52 & 55 & 48 & 41 & 64 & 57 & 41 & 48 & 52 & 51 & 39 & 66 & 61\end{array}$

A) 2
B) 4
C) 3
D) 1