Bicarbonate secretion________.A) neutralizes acid entering from the stomach into the duodenum.B) is secreted by apical Cl--HCO3-exchanger. C) is not dependent on high levels of carbonic anhydrase to maintain bicarbonate production. D) is secreted by the acinar cells.E) neutralizes acid entering from the stomach into the duodenum and is secreted by apical Cl--HCO3-exchanger.