Prescribed to you by your doctor.
I would use an over the counter antacids for occasional heart burn. If there are symptoms of acid reflux I would suggest a histamine blocker, or H2-Blockers, such as Ranitidine (Zantac) and Famotidine (Pepcid)
The answer to your question is,
An Arrhenius acid is a type of substance that separates in water to form Hydrogen ions.
-Mabel <3
I’m pretty sure it would be D.