Official Answer Key & Detailed Solution
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Correct Answer: Option (D) — 1, 2, 3 and 4
Concept & Option Breakdown
Standard Reference VerifiedAll four listed diseases are infectious:
- Foot-and-mouth disease (FMD) is a highly contagious viral disease caused by an Aphtovirus (Picornaviridae).
- Anthrax is an infectious bacterial disease caused by Bacillus anthracis.
- Black Quarter (blackleg) is an acute infectious bacterial disease caused by Clostridium chauvoei.
- Cowpox is an infectious viral skin disease caused by the Cowpox virus (Orthopoxvirus).
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