Which of the following proteins is responsible for the inhibition of complement activation in the blood?

A C1-inhibitor ✓
B Factor H
C Factor I
D CD59

Explanation

C1-inhibitor is a protein that inhibits the activation of the complement system, preventing excessive inflammation and tissue damage.

Source

Janeway's Immunobiology
Hematology Hematology: Blood Components Hematology: Blood Components Hard MEDICAL Confidence: high