Which of the following purgative increases the fecal bulk due to their water absorbing and retaining capacity-: (A) Methyl cellulose, (B) Lactulose, (C) Liquid paraffin, (D) Dioctyl sodium sulfosuccinate
Answer is A. Ans. is 'a' i.e., Methyl cellulose o Bulk forming purgatives (e.g. methycellulose) absorb water and increas the volume of stool.