Organize the Items Listed into the Proper Sequence of Events

Multiple Choice

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 CO_2.
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