Which of the following provides the correct explanation for a decrease in light scatter as concentration of hapten (such as a drug) increases in nephelometric inhibition immunoassay (NINIA)? geoquad geoquad As the concentration of hapten (drug) increases, more soluble hapten (drug)-antibody complexes form, reducing the amount of light scatter. As the concentration of hapten (drug) increases, the excess of antibody decreases, resulting in less light scatter. geoquad geoquad As the concentration of hapten (drug) increases, more insoluble hapten (drug)-antibody complexes form, resulting in less light scatter. As the concentration of hapten (drug) increases, more hapten (drug)-antibody compleses form, which fox complement and destroy the complex, reducing the amount of light scatter.