Which of the following describes an "artisanal" mine?

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An artisanal mine is a small-scale or subsistence style of mining characterized by manual, labour-intensive work using rudimentary tools or no mechanization at all. Artisanal mining usually relies on cheap, non-specialised labor without necessary training whose services they can easily afford. The work demands the use of simple tools and strategies that do not require fuel or electricity, perhaps because the power grid is too unreliable or too expensive. It's a cheap and less harmful form of extraction but is not entirely free from hazardous chemicals.

Which of the Following Describes an "Artisanal" Mine