Organize the Items Listed into the Proper Sequence of Events

Organize the items listed into the proper sequence of events for gas exchange.
A: O₂ is transported to cells by circulatory system
B: O₂ is drawn into the lungs during inhalation
C: Cells use O₂ and generate CO₂
d: CO₂ is exhaled
E: The circulatory system transports CO₂ to the lungs

A) a,b,c,d,e
B) b,a,c,d,e
C) b,a,c,e,d
D) c,e,d,a,b
E) e,d,c,b,a