Diet supplementation with ______ gives protection against Aeromonas salmonicida in Atlantic salmon.

Correct option is B

Correct Answer: (b) Vitamin C
Explanation:
→ Vitamin C (ascorbic acid) boosts immunity, collagen integrity, and wound healing.
→ Protects Atlantic salmon from infection by Aeromonas salmonicida.
Information Booster:
→ Essential for stress tolerance and disease resistance in cold-water fish.
Additional Information:
(a) Vitamin A: Helps vision, epithelial maintenance.
(c) Vitamin K: Blood clotting.
(d) Vitamin B: General metabolism, not specific protection.