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living organisms require at least 27 elements, of which 15 are metals. among these, those required in major quantities, include

Living organisms require at least 27 elements, of which 15 are metals. Among these, those required in major quantities, include

[A] sodium, magnesium, copper and manganese

[B] potassium, sodium, magnesium and calcium

[C] potassium, molybdenum, copper and calcium

[D] potassium, manganese, copper and calcium

Answer & Explanation
Option: [B]

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