The following are multiple choice questions (with answers) about medical knowledge.   **Question:** In universal pro-taper retreatment file end cutting tip is seen in?   (A) D-1   (B) D-2   (C) D-3   (D) None of the above
['(A) D-1 <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) D-1 \n (B) D-2 \n (C) D-3 \n (D) None of the above <> possible answers', '  In universal pro-taper retreatment file end cutting tip is seen in? <> context@']