The purpose of the enzyme on the enzyme-labeled secondary antibody in the Western Blotting is a) to catalyze binding of the antibody to the polystyrene well plate b) to allow the antibody to bind to the primary antibody in the assay c) to produce a colored product showing the presence of the secondary antibody d) to allow the antibody to bind to the antigen which is sought for in a blood or bodily fluid sample e) none of the above