Find the centre and radius of the circle $2x^2+2y^2-8x-7y=0$

Question

$\begin{array}{1 1} (A) center = (2, \large\frac{-7}{4}), radius = \large\frac{1}{4} \sqrt 113 \\ (B) center = (2, \large\frac{7}{4}), radius = \large\frac{1}{4} \sqrt 113 \\ (C) center = (2, \large\frac{-7}{4}), radius = \large\frac{1}{4} \sqrt 43 \\ (D) center = (2, \large\frac{7}{4}), radius = \large\frac{1}{4} \sqrt 43 \end{array}$