Choose the correct answer from the options given below:
The electrolyte used for electroplating an article with silver is
A. Silver nitrate solution
B. Silver cyanide solution
C. Sodium argentocyanide solution
D. Nickel sulfate solution
Name the metallic ions that should be present in the electrolyte when an article made of copper is to be electroplated with silver.
Identify the substance underlined, in the following case
The electrolyte used for electroplating an article with silver.