In Australian Dental Council’s examination, the indirect question related with Vitamin D are asked but in NEET MDS there may be direct question.
Terminology:
Calciferol: Vitamin DCalcidiol : 25-hydroxyvitamin D [25(OH)D]Calcitriol: 1,25-dihydroxyvitamin D [1,25(OH)2D]Vitamin D2: ErgocalciferolVitamin D3: Cholecalciferol