A. bronchi ⇢ trachea ⇢ alveoli ⇢ bronchioles
B. bronchioles ⇢ alveoli ⇢ bronchi ⇢ trachea
C. trachea ⇢ bronchi ⇢ bronchioles ⇢ alveoli
D. trachea ⇢ bronchioles ⇢ bronchi ⇢alveoli

Correct Answer:

Option C – trachea ⇢ bronchi ⇢ bronchioles ⇢ alveoli

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