Complement is comprised of 20+ plasma proteins that have many different functions to help as our 2nd line of defense. Please name 4 functions:
a) Opsonization, inflammation, cytolysis, chemotaxis
b) Phagocytosis, antibody production, cell signaling, coagulation
c) Antigen recognition, DNA replication, protein synthesis, enzyme activation
d) Hemostasis, vasodilation, neurotransmission, hormone regulation