A wire is suspended vertically from a rigid support. When loaded with a steel weight in air, the wire extends by `16cm`. When the weight is completely immersed in Water, the extension is reduced to `14 cm`. The relative density of the material of the weight is
A. `2g//cm^(3)`
B. `6g//cm^(3)`
C. `8g//cm^(3)`
D. `16 g//cm^(3)`