According to NEC Article 500, which of the following best describes a Class I, Division 1 hazardous location?
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A
A location where ignitible fibers or flyings are handled, manufactured, or used.
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B
A location where combustible dust is normally in suspension in the air in quantities sufficient to produce explosive or ignitible mixtures.
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C
A location in which flammable gases or vapors are or may be present in the air in quantities sufficient to produce explosive or ignitible mixtures under normal operating conditions.
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D
A location where volatile flammable liquids or flammable gases are handled, but are normally confined within closed containers from which they can escape only in case of accidental rupture.