FRICTION

Try solving this one. Here a disc is rotating along its axis with angular speed w, on which a block is revolving in a circle with radius r. As w is increased, tangential acc would increase and thus the block will have a sliding tendency. The question is, tendency wrt to disc is given (blue arrow ) but what about tendency to slide wrt to ground? Choose from the following - (1,2,3,4,5,6)