Which statement is true concerning the charging a wet cell nickel-cadmium battery?

Correct Answer: Option A — The specific gravity of the electrolyte will be generally unaffected by the state of charge.

Potassium hydroxide electrolyte in nickel-cadmium cells does not chemically combine with the active nickel and cadmium plate materials during charging, meaning the specific gravity remains essentially unaffected by the battery's state of charge.