Rickets in children and osteomalacia in adults is caused by the deficiency of

Which of the following pairs is not correctly matched?

Which of the following is the matching pair of the deficient nutrient and the resulting disease in which the patient develops swollen lips,thick pigmented skin of hands and legs,and irritability?

Deficiency of vitamin $C$ causes

Select the mismatch between a vitamin and its deficiency disease,among the following:

Which of the following pairs shows symptoms like swollen lips,thick pigmented skin on the hands,and irritability?