premise: The city's name derives from the Greek words "άργυρος" ("árgyros" meaning "silver") and "πόλη" ("poli" meaning "city"). The name's older form was "Argyroupolis". The first name of the settlement was "New Argyroupolis", given by the refugees from Gümüşhane.
hypothesis: The city's name translates to silver town.
reason: It's incorrect because it says right there that it means silver city. Maybe the system thinks city and town mean the same thing?