Complement C3b protein coats bacteria and stimulates phagocytosis by ________ during a process called ________.
A. mast cells and basophils; opsonization
B. lymphocytes and monocytes; opsonization
C. mast cells and basophils; cytolysis
D. neutrophils and macrophages; cytolysis
E. neutrophils and macrophages; opsonization
Answer: E
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