Choose the correct answer from the given four options. The equation of the line passing through the point (1, 2) and perpendicular to the line $x+y+1 = 0 $ is

Question

$\begin {array} {1 1} (A)\;y – x + 1 = 0 & \quad (B)\;y – x – 1 = 0 \\ (C)\;y – x + 2 = 0 & \quad (D)\;y – x – 2 = 0 \end {array}$