Which of the Following Is Not an Accurate Comparison of Human

Which of the following is not an accurate comparison of human and insect respiratory systems?

A) The insect tracheal system provides a large surface, while the lungs have only a small surface-to-volume ratio.
B) Oxygen is transported via the circulatory system in humans, but the tracheal system in insects is separate from body fluids.
C) Only humans can increase airflow using ventilation.
D) Both gas exchange systems consist of a system of tubules to transport gases.