Answer:
D) Children born to parents with dark skin living far away from the equator
Explanation:
Rickets is a disease condition in children which is characterized by the softening and weakening of the bones caused by the deficiency of vitamin D.
Vitamin D is responsible the absorption of calcium and calcium plays a role in the formation of stronger bones and teeth.
Children born to parents with dark skin living far away from the equator are at a risk of developing rickets. As vitamin D is majorly naturally produced in our skin on exposure to sunlight, a dark skin prevents adequate penetration of sunlight into the skin.
Also, living far away from the equator where there is little sunlight all year, complicates the issue.
In order to resolve this, such kids should be given vitamin D supplements to meet their daily needs.
