input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Most used selective medium for streptococcus rnutans is   (A) Mac conkey medium   (B) Mitus salivarius bacitracin agar   (C) Nutrient agar   (D) Tellurite medium
output: ['(B) Mitus salivarius bacitracin agar <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Mac conkey medium  (B) Mitus salivarius bacitracin agar  (C) Nutrient agar  (D) Tellurite medium <> possible answers', '  Most used selective medium for streptococcus rnutans is <> context']