<prompt> Which of the following drug is specifically for Her 2 positive breast carcinoma is:TrastuzumabTamoxifenExemestaneFulvestrant  <response>: Monoclonal antibody against HER2neu receptor are:- Trastuzumab Peuzumab SE:- Cardiotoxic Tamoxifen:- Antagonist on estrogen receptor expressed in mammary tissue. - Agonist on estrogen receptor in bone - Useful not only in treatment and prophylaxis of breast cancer but also in prevention of osteoporosis Exemestane:- a steroid molecule, irreversible inhibitor of aromataseenzyme required for estrogen synthesis Fulvestrant:- Pure estrogen receptor antagonistSelective estrogen receptor down regulator 