input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The property of amalgam that makes it undesirable to bevel occlusal margins of an amalgam cavity preparation is its:   (A) Flow   (B) Ductility   (C) Brittleness   (D) Malleability
output: ['(C) Brittleness <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Flow  (B) Ductility  (C) Brittleness  (D) Malleability <> possible answers', '  The property of amalgam that makes it undesirable to bevel occlusal margins of an amalgam cavity preparation is its: <> context']