A portion of the Quadratic Formula proof is shown. Fill in the missing statement.

A. x plus b over 2 times a equals plus or minus the square root of b squared minus 4 times a times c, all over 2 times a

B. x plus b over 2 times a equals plus or minus the square root of b squared minus 4 times a times c, all over 4 times a

C. x plus b over 2 times a equals plus or minus the square root of b squared minus 4 times a times c, all over 2 times a squared

D. x plus b over 2 times a equals plus or minus the square root of b squared minus 4 times a times c, all over a