Rickets is caused by the deficiency of__i__ in food, while goitre is caused by the deficiency of__ii__.
The information in which alternative completes the given statement?
Lack of vitamin D in the diet causes rickets. In this disease, bones become weak and get bent in the shape of a bow. Deficiency of iodine in food is characterized by a disease called goitre. During goitre, glands in the neck get swollen. It also causes mental disabilities in children.