The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Following metal alloy held in reducing hardness of orthodontic wires?   (A) Chromium   (B) Cobalt   (C) Silicon   (D) Carbon
['(B) Cobalt <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Chromium \n (B) Cobalt \n (C) Silicon \n (D) Carbon <> possible answers', '  Following metal alloy held in reducing hardness of orthodontic wires? <> context@']