Question

Deficiency of which of the following elements is

Deficiency of calcium causes weakening of bones because bone consists of calcium and phosphate both.

responsible for weakening of bones? 1. Calcium 2. Phosphorus 3. Nitrogen 4. Carbon Select the correct answer using the codes given below

A 1 and 2

B Only 1

C 1, 2 and 3

D Only 4

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