Q: 22 (NDA-I/2012)

Sometimes, indigestion is caused by the secretion of too much hydrochloric acid in the stomach. To ease the pain caused, a tablet can be taken that reacts to reduce the amount of acid present.
Which one among the following would be inappropriate for a manufacturer to include as a major reactant in the tablet?
question_subject: 
Science
question_year: 
2012
question_exam: 
NDA-I
stats: 
0,168,272,152,48,120,120