Secretory IgA Is Best Described as _____

Secretory IgA is best described as _____.

A) a non-inflammatory immunoglobulin that restricts the passage of antigens across mucosal surfaces
B) a complement-activating immunoglobulin that causes destruction of invasive microflora through the membrane-attack complex
C) an opsonizing antibody that facilitates uptake by M cells through Fc receptors
D) an inflammatory immunoglobulin that stimulates the chemotaxis of neutrophils into mucosal surfaces
E) a monomeric IgA that neutralizes antigen effectively at mucosal surfaces.

Correct Answer:

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