<prompt> Which of the following anti-cancer drug comes under the group of monoclonal antibodies?Di-ethyl-stilbesterolTamoxifenRituximabBoezomib  <response>: Name of monoclonal antibodies end with -mab. DRUG ANTICANCER GROUP Diethylstilbestrol Hormonal Tamoxifen Hormonal Rituximab Monoclonal antibody Boezomib Proteasome inhibitor 