An Advantage of Monoclonal Anti-C3 Over Polyclonal Anti-C3 Is

An advantage of monoclonal anti-C3 over polyclonal anti-C3 is:

A) with monoclonal anti-C3, the antibody potency can be controlled.
B) contamination with anti-IgG is avoided with anti-C3.
C) with monoclonal anti-C3, antibody to immunoglobulin light chains are eliminated.
D) false-positives caused by cold agglutinins are avoided with anti-C3.