Which of the following has the same equation as $x^2-8x-14$

Question

$\begin{array}{1 1} (a)\;(x-4)^2-30 \\ (b)\;(x-4)^2+30 \\ (c)\;(x-4)^2+30 \\(d)\;(x-4)^2-30 \end{array} $