The tension in the string is

Question

A cylindrical body of cross – sectional area A, height H and density r_s, is immersed to a depth h in a liquid of density r, and tied to the bottom with a string. The tension in the string is      

 

       (a) $\rho ghA$                                                           (b) $\left ( \rho _{s}-\rho \right )$ghA

      (c) $\left ( \rho -\rho_{s} \right )$ghA                                                      (d) $\left ( \rho h-\rho_{s}H \right )$gA