When a circuit is entirely made up of conducting materials, it is classified as closed , meaning current can flow uninterrupted. An open circuit has breaks, while closed circuits ensure a complete electrical path. Thus, the correct answer is C) closed. ;
A circuit made entirely of conducting materials is called a closed circuit, which allows electric current to flow without interruption. An open circuit has breaks preventing flow, while parallel and shorted circuits refer to different configurations and conditions. Therefore, the answer is C) closed.
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