[" The normal to the curve "x=a(cos theta+theta sin theta),y=a(sin theta-theta cos theta)" at "],[" any point "theta" is such that "],[" A.it passes through the origin "],[" B.it makes an angle "(pi)/(2)+theta" with the "x" -axis "],[" C.it passes through "(a(pi)/(2),-a)],[" D.it is at a constant distance from the origin "]