b
(b)The volume of liquid displaced by floating ice \({V_D} = \frac{M}{{{\sigma _L}}}\)
Volume of water formed by melting ice, \({V_F} = \frac{M}{{{\sigma _W}}}\)
If \({\sigma _1} > {\sigma _W},\)then, \(\frac{M}{{{\sigma _L}}} < \frac{M}{{{\sigma _W}}}\)i.e. \({V_D} < {V_F}\)
i.e. volume of liquid displaced by floating ice will be lesser than water formed and so the level if liquid will rise.