To Remove the Effect of a Patient's Rheumatoid Factor, the

To remove the effect of a patient's rheumatoid factor, the

A) patient's sample could be diluted in a buffer containing IgG that does not react with the test antigen
B) assay should be run at 37 Cº instead of at room temperature
C) patient's sample could be diluted in nonfat dried milk
D) patient's serum could be diluted in a buffer containing mouse immunoglobulin