In the figure, a ladder of mass m is shown leaning against a wall. It is in static equilibrium making an angle 0 with the horizontal floor. The coefficient of friction between the wall and the ladder is and that between the floor and the ladder is u. The normal reaction of the wall on the ladder is N and that of the floor is N. If the ladder is about to slip, then (A) 0 0 and N tan 0 = (B) 0 = 0 and N tan 0 = (C) 0 0 and N = mg 2 (D) 0 0 and N tan 0 mg 2 mg 1 + MM mg 2 H 0 H