In the figure shown below masses of blocks A and B are 3 kg and 6 kg respectively. The force constants of springs $$S_1$$ and $$S_2$$ are 160 N/m and 40 N/m respectively. Length of the light string connecting the blocks is 8 m. The system is released from rest with the springs at their natural lengths. The maximum elongation of spring $$S_1$$ will be

A

0.294 m

B

0.490 m

C

0.588 m

D

0.882 m