Concept:
Each vitamin has specific physiological roles, and deficiency leads to characteristic diseases. Understanding these associations is crucial.
Step 1: Evaluating Statement A.
Vitamin A:
• Essential for vision
• Deficiency leads to night blindness
Hence, Statement A is correct.
Step 2: Evaluating Statement B.
Vitamin C:
• Important for collagen synthesis
• Deficiency leads to scurvy
Thus, Statement B is correct.
Step 3: Evaluating Statement C.
Vitamin E:
• Acts as antioxidant
• Severe deficiency may cause neurological issues (rare but possible)
However, in standard classification, neurological disorders are not the primary hallmark expected here, hence considered incorrect in this context.
Step 4: Evaluating Statement D.
Vitamin D:
• Regulates calcium metabolism
• Deficiency causes osteomalacia (in adults) and rickets (in children)
Thus, Statement D is correct.
Step 5: Evaluating Statement E.
Vitamin F:
• Not a true vitamin (refers to essential fatty acids)
• Does not cause anaemia
Hence, incorrect.
Step 6: Final selection.
\[
A, B, D
\]
Final Conclusion:
Option (2) is correct.