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