A Pregnant Patient Who Has Been Experiencing Repeated Vomiting Episodes

A pregnant patient who has been experiencing repeated vomiting episodes is admitted to the hospital by her obstetrician.After a series of tests determines that she is suffering from metabolic alkalosis,the physician orders intravenous administration of normal saline.How will this help the patient?

A) It will reduce the vomiting episodes.
B) The chloride ions of the solution will replace the acidic ions and relieve the acidic excess responsible for her condition.
C) The chloride ions of the solution will replace bicarbonate ions and relieve the bicarbonate excess responsible for her condition.
D) The sodium ions of the solution will introduce more bicarbonate ions and relieve the bicarbonate shortage responsible for her condition.