Official Answer Key & Detailed Solution
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Correct Answer: Option (A) — 1 and 2
Concept & Option Breakdown
Standard Reference VerifiedStatement 1 is correct: The femur (thigh bone) is the longest, strongest, and heaviest bone in the human skeletal system. Statement 2 is correct: Cholera is an acute diarrhoeal infection caused by ingestion of food or water contaminated with the bacterium Vibrio cholerae. Statement 3 is incorrect: Athlete's foot (tinea pedis) is a fungal infection caused by dermatophytes, not a viral infection.
Athlete's foot is a classic fungal skin condition (Tinea), easily eliminating option 3 and leaving (a) as the answer.
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