The Following Is a List of Some Airways

Multiple Choice

The following is a list of some airways.What is the order in which air passes through them?
1) secondary bronchus
2) bronchioles
3) alveolar ducts
4) primary bronchus
5) respiratory bronchiole
6) alveoli
7) terminal bronchiole

A) 4,1,2,7,5,3,6
B) 4,1,2,5,7,3,6
C) 1,4,2,5,7,3,6
D) 1,4,2,7,5,3,6
E) 2,4,1,7,5,3,6