input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The darkening of radiograph X-ray depends on all except:   (A) Thickness of object   (B) Quality and quantity of X-rays   (C) Angulation cone   (D) Velocity of electron emitted from cathode
output: ['(C) Angulation cone <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Thickness of object  (B) Quality and quantity of X-rays  (C) Angulation cone  (D) Velocity of electron emitted from cathode <> possible answers', '  The darkening of radiograph X-ray depends on all except: <> context']