An Iron Block of Density $\rho$ Fe and of Volume L3 Is Immersed in a Fluid

Multiple Choice

An iron block of density $\rho$ Fe and of volume l3 is immersed in a fluid of density $\rho$ fluid. The block hangs from a scale which reads W as the weight. The top of the block is a height h below the surface of the fluid. The correct equation for the reading of the scale is:

A) W = ( $\rho$ Fe - $\rho$ fluid) ghl2.
B) W = ( $\rho$ fluid - $\rho$ Fe) gl3.
C) W = ( $\rho$ Fe- $\rho$ fluid) gl3.
D) W = ( $\rho$ Fe + $\rho$ fluid) ghl2.
E) W = ( $\rho$ Fe + $\rho$ fluid) gl3.