Put the Following Steps of Stomach Acid Production in the Correct

Put the following steps of stomach acid production in the correct order starting with the reaction that requires an enzyme.
1) H₂CO₃ dissociates.
2) Chloride ion combines with H+ in the gastric lumen.
3) Water and CO2 combine to form carbonic acid.
4) H+ and bicarbonate ion are transported into the gastric lumen.
5) Cl- diffuses into the gastric lumen.

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