The Dodd-Frank Act Section 1502 in the United States primarily targets conflict minerals from the Democratic Republic of Congo. How does this legislation indirectly affect diamond industry practices?
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A
It directly mandates KP certification for all diamonds sold in the US
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B
It established supply chain transparency norms that influenced voluntary diamond industry due diligence standards
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C
It requires GIA to report all diamond origins to the SEC
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D
It bans all mineral imports from central Africa