Consider a disc rolling with out slipping on a horizontal surface at a speed V as shown in figure.<br> 1) the speed of the particle at A is 2V. <br> 2) the speed of the particle and B,C and D is equal to V <br> 3) The speed of C is zero and the speed of B is $\sqrt 2$ V <br> 4) the speed of 0 is less then the speed of V which is the correct answer?

Question

$a)\; 1,2 \;and\; 3 \\ b)\; 1,3 \;and \;4 \\ c)\; 2,3 \;and\; 4 \\ d)\; 1,2 \;and\; 4 $