Put the following steps of stomach acid production in the correct order starting with the reaction that requires an enzyme.
1) Carbonic acid 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