Only d will die. becouse we can see a line every where its calculation
first circumference of circle=3.14*dia=3.14*2=6.2 mm ie for each revolution it travells 6mm
then the rolling area we can see a triangle apply hypotenuse=root of base square+ altitude square=5mm
then it is sure that d will die the weight of the rolling body was less it rolls up to the fulcrum nothing will happen to c and the others