The coefficient of friction between the block A of mass m & block B of mass `2m` is `mu`. There is no friction between block B & the inclined plane. If the system of blocks A & B is released from rest & there is no slipping between A & B then :
A. `2theta lt sin^(-1)(2mu)`
B. `theta lt tan^(-1)(mu)`
C. `2 theta lt cos^(-1)(2mu)`
D. `2 theta lt tan^(-1) (mu//2)`
