The mechanisms of airway obstruction in COPD include which of the following?
1) Airway remodeling
2) Inflammation and obstruction of small airway
3) Loss of elasticity
4) Active bronchospasm
A) 1 and 2 only
B) 1 and 4 only
C) 2, 3, and 4 only
D) 3 and 4 only
Correct Answer:
Verified
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