input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The non-invasive method to measure the blood flow is:   (A) Electric pulp test   (B) Percussion   (C) Radiograph   (D) Laser Doppler flowmetry
output: ['(D) Laser Doppler flowmetry <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Electric pulp test  (B) Percussion  (C) Radiograph  (D) Laser Doppler flowmetry <> possible answers', '  The non-invasive method to measure the blood flow is: <> context']