Official Answer Key & Detailed Solution
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Correct Answer: Option (A) — Milk contains none of the B-vitamins.
Concept & Option Breakdown
Standard Reference VerifiedOption (a) is incorrect: Milk is rich in several B-complex vitamins, especially Vitamin B2 (riboflavin) and Vitamin B12 (cobalamin), in addition to calcium and protein. Option (b) is correct: Vitamin A maintains epithelial tissues, and its deficiency leads to follicular hyperkeratosis and dry/scaly skin (xerosis). Option (c) is correct: Scurvy (Vitamin C deficiency) affects collagen integrity in joints and muscles, causing joint pain (arthralgia). Option (d) is correct: Wet beriberi caused by thiamine deficiency impairs cardiac function and can lead to high-output heart failure.
Extremist negative phrase 'contains NONE of the B-vitamins' makes Option A immediately identifiable as incorrect.
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