The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Anatomical dead space measured by -   (A) Bohler's method   (B) Xenon dilution technique   (C) Spirometry   (D) Single breath nitrogen test
['(D) Single breath nitrogen test <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', "(A) Bohler's method \n (B) Xenon dilution technique \n (C) Spirometry \n (D) Single breath nitrogen test <> possible answers", '  Anatomical dead space measured by - <> context@']