The coefficient of static friction, µs, between block A of mass 2 kg and the table as shown in the figure is 0.2. What would be the maximum mass value of block B so that the two blocks do not move ? The string and the pulley are assumed to be smooth and massless. ($g = 10 m/s^{2}$)

Question

( A ) 0.4 kg
( B ) 0.2 kg
( C ) 4.0 kg
( D ) 2.0 kg