Microbiology Soluble components of complement system account for about A 1-2 mg/ml of total serum protein B 3-4 mg/ml of total serum protein C 5-7 mg/ml of total serum protein D 7-8 mg/ml of total serum protein 💡 Explanation Soluble components of complement system account for about ✓ Correct Answer: B. 3-4 mg/ml of total serum protein