The path followed by air as it passes through the lungs in mammals is

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