Which of the Following Statements About the Production and Use

Which of the following statements about the production and use of monoclonal antibodies is incorrect?

A) Production of monoclonal antibodies requires a purified form of antigen.
B) A monoclonal antibody has specificity for only one epitope of an antigen.
C) B cells are fused with a tumor cell called a myeloma,to immortalize the resulting hybridoma.
D) Monoclonal antibodies made in mice have limited therapeutic potential.
E) Humanized monoclonal antibodies reduce complications associated with using mouse monoclonal antibodies.