Official Answer Key & Detailed Solution
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Correct Answer: Option (B) — A – 2; B – 3; C – 1; D – 4
Concept & Option Breakdown
Standard Reference Verified• A is matched with 2: Haemophilia is an X-linked recessive genetic disorder affecting blood clotting. • B is matched with 3: Diabetes mellitus is an endocrine/hormonal disorder related to insulin insufficiency or resistance. • C is matched with 1: Rickets is a nutritional deficiency disease caused by a lack of Vitamin D, calcium, or phosphate. • D is matched with 4: Ringworm is a fungal skin infection caused by dermatophytes.
Ringworm is caused by a fungus (D-4) and Rickets is caused by Vitamin D deficiency (C-1). This single pairing uniquely selects (b).
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