The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A healthy 21-year-old man undergoes physical fitness testing prior to long-term submarine deployment. To evaluate his pulmonary function, lung and thoracic compliance are measured at different system pressures. A graph of the relationship between his lung volume and transpulmonary pressure is shown. The dotted line in this graph corresponds to which of the following lung volumes?   (A) Inspiratory capacity   (B) Tidal volume   (C) Functional residual capacity   (D) Total lung capacity
['(C) Functional residual capacity <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Inspiratory capacity \n (B) Tidal volume \n (C) Functional residual capacity \n (D) Total lung capacity <> possible answers', '  A healthy 21-year-old man undergoes physical fitness testing prior to long-term submarine deployment. To evaluate his pulmonary function, lung and thoracic compliance are measured at different system pressures. A graph of the relationship between his lung volume and transpulmonary pressure is shown. The dotted line in this graph corresponds to which of the following lung volumes? <> context@']