Which of the following coagulation factors is affected in the condition known as paroxysmal nocturnal hemoglobinuria?

A Factor VIII
B Factor IX
C CD55 and CD59
D Von Willebrand factor
Paroxysmal nocturnal hemoglobinuria is a condition characterized by the deficiency of CD55 and CD59, which are proteins that regulate the complement system.
Williams Hematology
Hematology Hematology: Coagulation Disorders Hematology: Coagulation Disorders Hard MEDICAL Confidence: high