Arrange the structures through which air passes upon entering the body in the proper sequence
1) alveolus
2) bronchus
3) larynx
4) bronchiole
5) pharynx
6) trachea
a. 5 ? 3 ? 6 ? 2 ? 4 ? 1
b. 3 ? 5 ? 2 ? 6 ? 1 ? 4
c. 2 ? 4 ? 3 ? 5 ? 6 ? 1
d. 3 ? 6 ? 5 ? 2 ? 4 ? 1
e. 5 ? 6 ? 3 ? 4 ? 2 ? 1
A
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