Antibodies which stick to the surface of microbes are
Antitoxins
Agglutinins
Opsonins
Precipitins
A
Antitoxins
B
Agglutinins
C
Opsonins
D
Precipitins
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Solution
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Opsonins are molecules such as antibodies that enhances phagocytosis which attaches on to the surface of microbes by marking an antigen for an immune response. With the antigen coated in opsonins, binding to immune cells is greatly enhanced. In a healthy individual, they mark dead and dying self-cells for clearance by macrophages and neutrophils, activate complement proteins and target cells for destruction through the action of natural killer (NK) cells.
So, the correct answer is 'Opsonins'.
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