What is the term for the phenomenon where an individual's red blood cells are resistant to lysis by complement?

A Innate resistance
B Acquired resistance
C Complement regulatory protein deficiency
D Cromer-related inhibitor deficiency ✓

Explanation

Cromer-related inhibitors, such as decay-accelerating factor (DAF), help regulate complement activation and prevent lysis of red blood cells.

Source

Journal of Immunology research articles
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: medium