Correct option is C
✅ (c) Antibodies: • Colostrum is the first milk secreted after calving and is rich in immunoglobulins (antibodies). • It provides passive immunity to newborn calves against various diseases. • Calves are born with no immune defense, so colostrum is vital within the first 6–12 hours after birth.
❌ (a), (b), (d): • These nutrients may be present but are not the primary reason colostrum is essential.