input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The usual radiographic appearance of an osteosarcoma is:   (A) Discrete radiolucency with regular borders   (B) Multicystic radiolucency with a soap bubble appearance with an irregular peripheral border   (C) Sunburst pattern with radiopaque strands extending from the cortical plates   (D) Cotton wool appearance with an irregular peripheral border
output: ['(C) Sunburst pattern with radiopaque strands extending from the cortical plates <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Discrete radiolucency with regular borders  (B) Multicystic radiolucency with a soap bubble appearance with an irregular peripheral border  (C) Sunburst pattern with radiopaque strands extending from the cortical plates  (D) Cotton wool appearance with an irregular peripheral border <> possible answers', '  The usual radiographic appearance of an osteosarcoma is: <> context']