Contamination of drinking water with which of the following causes Blackfoot disease (BFD)?

Contamination of drinking water with which of the following causes Blackfoot disease (BFD)?
[A]Nitrates
[B]Arsenic
[C]Mercury
[D]Cadmium

Arsenic
Arsenicosis or Black foot is caused by exposure over a period of time to Arsenic in drinking water. It may also be due to intake of arsenic via food or air. Kindly note that Itai-itai disease is caused by Cadmium poisoning.

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