The distance between two parallel lines is $p^1-p$ equation of one line is $x\cos \alpha +ysin\alpha =p$ then the equation of the Second line is

• A

  $x\cos \alpha +y\sin \alpha +p^1+2p=0$

• B

  $x\cos \alpha +y\sin \alpha =2p^1-p$

• C

  $x\cos \alpha +y\sin \alpha =0$

• D

  $x\cos \alpha +y\sin \alpha +p^1-2p=0$