What Is the Function of Goat Anti-Rabbit IgG Antibodies in a Typical

What is the function of goat anti-rabbit IgG antibodies in a typical point-of-care immunochromatographic assay?

A) In the absence of antibodies in a clinical specimen, they bind to red colloidal gold particles.
B) They are conjugated with red colloidal gold particles and are used to bind to antigen in a clinical specimen.
C) In the presence of antigen in a clinical specimen, they prevent complexes from forming with rabbit antibodies.
D) In the absence of antigen in a clinical specimen, they bind rabbit antibodies attached to red colloidal gold particles.