Gastric juice contains 3.0g of HCl per litre.If a person produces 2.5l of gastric juice per day,how many antacid tablets each containing 400mg of $Al(OH)_3$ are needed to neutralized all the HCl produced in one day ?

Question

$(a)\;12\qquad(b)\;14\qquad(c)\;15\qquad(d)\;16$