This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Physiology
More resistance in respiration is due to which of the following? 
Select and explain. 
A. Saturation with moisture, B. Increased rate of flow during expiration, C. Increased compression of airway, D. Due to change from linear to turbulent flow
C: Increased compression of airway
Answer: C: Increased compression of airway 
Explanation: More resistance in respiration is seen in bronchial construction Ref: guyton and hall textbook of medical physiology 12 edition page number:333,334,335