For the system shown in figure, the pulleys are light and frictionless. The tension in the string will be

• A

  $\frac{2}{3}\mathrm{mgsin}\mathrm{\theta }$

• B

  $\frac{3}{2}\mathrm{mgsin}\mathrm{\theta }$

• C

  $\frac{1}{2}\mathrm{mgsin}\mathrm{\theta }$

• D

  $2\mathrm{mgsin}\mathrm{\theta }$