In which of the following cases blood cells will shrink:
(a) when placed in water containing more than 0.9% (mass/ volume) NaCl solution.
(b) when placed in water containing less than 0.9% (mass /volume) NaCl solution.
(c) when placed in water containing 0.9% (mass/volume) NaCl solution.
(d) when placed in distilled water.