The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Green discoloration of teeth is seen in:   (A) Tetracycline therapy   (B) Fluorosis   (C) Erythroblastosis fetalis   (D) None of the above
['(C) Erythroblastosis fetalis <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Tetracycline therapy \n (B) Fluorosis \n (C) Erythroblastosis fetalis \n (D) None of the above <> possible answers', '  Green discoloration of teeth is seen in: <> context@']