system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Immunosuppressive drugs are less effective in which type of graft rejection ?
assistant
The correct answer is  Ans. is 'b' i.e., Acute humoral rejectionBecause most clinically available immunosuppressive drugs target T-cells, they or inefective in antibody mediated rejection".