input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Glossy smooth margins of a casting are due to   (A) Shrinkage of alloy on cooling   (B) Investment breakdown   (C) incomplete wax elimination   (D) incomplete gas elimination
output: ['(C) incomplete wax elimination <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Shrinkage of alloy on cooling  (B) Investment breakdown  (C) incomplete wax elimination  (D) incomplete gas elimination <> possible answers', '  Glossy smooth margins of a casting are due to <> context']