Which of the following statements is correct?

PYQ SSC JE (Junior Engineer) 2022

1. A.

   Sodium and chloride are required in huge amounts for our body.

2. B.

   Minerals are least important for our body.

3. C.

   Magnesium is not required at all for our body.

4. D.

   Calcium is the most abundant mineral in our body.

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