<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 21-year-old man is admitted to the intensive care unit for respiratory failure requiring mechanical ventilation. His minute ventilation is calculated to be 7.0 Lmin, and his alveolar ventilation is calculated to be 5.1 Lmin. Which of the following is most likely to decrease the difference between minute ventilation and alveolar ventilation?? A: Increasing the respiratory rate, B: Increasing the partial pressure of inhaled oxygen, C: Decreasing the physiologic dead space, D: Decreasing the affinity of hemoglobin for oxygen, E: Increasing the respiratory depth,  <response>: This is a question about the difference between minute ventilation and alveolar ventilation. The minute ventilation is the total volume of air inhaled or exhaled per minute. The alveolar ventilation is the volume of air reaching the alveoli per minute. The difference between the two is called the physiological dead space, which is the volume of air in the conducting airways that does not participate in gas exchange. To decrease the difference between minute ventilation and alveolar ventilation, we need to decrease the physiological dead space. Of the choices given, decreasing the physiological dead space by option C is the best answer. The other options may increase minute ventilation but wont necessarily decrease physiological dead space.C: Decreasing the physiologic dead space 