Several inherited deficiencies in the complement system occur in humans. Which of the following would be the MOST severe?

Several inherited deficiencies in the complement system occur in humans. Which of the following would be the MOST severe?



A) deficiency of C3
B) deficiency of C5
C) deficiency of C6
D) deficiency of C7
E) deficiency of C8


Answer: A) deficiency of C3


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