Why Do Polar Substances Such as NaCl Dissolve So Readily

Why do polar substances such as NaCl dissolve so readily in water?

A) NaCl is a very dry powder, and the water is able to soak into the salt.
B) The sodium ions repel the negative end of the water molecule.
C) Spheres of hydration form between the water and the ions.
D) The charged ends of the water molecules are able to surround the oppositely charged salt ion.
E) both choices C and D

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