Which of the Following Physiologic Consequences Would Develop If the Liquid-Gas

Which of the following physiologic consequences would develop if the liquid-gas interface were without surfactant?

A) Large alveoli would empty into smaller ones at the end of exhalation.
B) Every exhalation would demand ventilatory muscle activity.
C) Every breath would require a considerable amount of pressure to expand the lung with each inspiration.
D) Some alveoli would collapse during exhalation.

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