A 56 year old female presented with breast carcinoma and she was prescribed herceptin(trastuzumab). Which of the following statement regarding the drug is true?

• A. It is a monoclonal antibody produced by injecting her-2 antigen
• B. It is an antibody produced entirely from mouse containing no human component
• C. It is a monoclonal antibody containing only human component
• D. It is a polyclonal antibody