Consider the following salts :
`NaCl, HgCl_(2), CuCl_(2), CuCl` and `AgCl`
Identify the correct salts that are insoluble in water.
A. `Hg_(2)Cl_(2), CuCl, AgCl`
B. `HgCl_(2), CuCl, AgCl`
C. `Hg_(2)Cl_(2), CuCl_(2), AgCl`
D. `Hg_(2)Cl_(2), CuCl, NaCl`