Which of the Minerals Given above is/are required by the Human body for the Contraction of Muscles?(2013)

Consider the following minerals

1. Calcium

2. Iron

3. Sodium

Which of the minerals given above is/are required by the human body for the contraction of muscles?(2013)

a) 1 only

b) 2 and 3 only

c) 1 and 3 only

d) 1, 2 and 3

Answer: D

Minerals required by the human body for the contraction of muscles:

• Sodium
• Potassium
• Calcium
• Magnesium
• Iron