The correct option is D All of the above
Aluminum hydroxide is an interesting base because it has a wide number of applications, including its use in antacids, it reacts with acid and neutralizes stomach acid, and for that reason is found in commercial antacids. It is useful in fire extinguishers as a foaming agent. Aluminum hydroxide is also used in water purification, in dyeing garments, and in the production of certain kinds of glass.