Which one of the following is not an archipelago?

An archipelago is a group or chain of islands clustered together in a sea or ocean. Here’s the classification for each option:\nB. Maldives: This is an archipelago consisting of around 1,200 small coral islands grouped in atolls.\nC. Korea: This is not an archipelago. Korea refers to the Korean Peninsula, which consists of North Korea and South Korea and is not a group of islands.\nThus, Korea is not an archipelago.