Consider the following statements 1. Calcium 2. Iron 3. Sodium Which o – McqOptions

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1.	Consider the following statements 1. Calcium 2. Iron 3. Sodium Which of the above minerals is/are needed for the contraction of muscles in human body?
A.	only 1
B.	2 and 3
C.	1 and 3
D.	all these
Answer» D. all these

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