Question

which mineral is essential for strong bones and teeth
a iron
b potassium
c calcium
d sodium

Explanation:

Iron is essential for oxygen transport in the blood. Potassium helps with nerve function and muscle contractions. Sodium is important for fluid balance and nerve function. Calcium is a key mineral for the development and maintenance of strong bones and teeth, as it is a major component of bone tissue.

Answer:

C. Calcium