| R - Bronchus |
| S - Trachea |
| T - Alveolus |
| U - Bronchiole |
A) \[\text{S}\to \text{U}\to \text{R}\to \text{T}\]
B) \[\text{S}\to \text{R}\to \text{U}\to \text{T}\]
C) \[\text{T}\to \text{U}\to \text{R}\to \text{S}\]
D) \[\text{T}\to \text{R}\to \text{U}\to \text{S}\]
Correct Answer: C
Solution :
During exhalation air travels from alveolus\[\to \] bronchiole\[\to \] bronchus\[\to \]trachea
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