$\begin {array} {1 1} (A)\;Both \: A \: and\: B\: are\: correct & \quad (B)\;Both\: A\: and\: B\: are\: wrong \\ (C)\;A\: is\: correct, \: B \: is\: wrong & \quad (D)\; A \: is \: wrong,\: B\: is\: correct \end {array}$