Correct option is B
Disease and Vaccination:
✅ Black quarter (BQ) – A bacterial disease caused by
Clostridium chauvoei.
Can be prevented through vaccination.
❌ Milk fever – A metabolic disorder; not preventable by vaccine.
❌ Mastitis – Bacterial infection; controlled through hygiene and antibiotics, not vaccination.
❌ Bloat – Gas buildup in the rumen; managed through diet, not vaccination.