<prompt> Which of the following purgative increases the fecal bulk due to their water absorbing and retaining capacity-Methyl celluloseLactuloseLiquid paraffinDioctyl sodium sulfosuccinate  <response>: Ans. is a i.e., Methyl cellulose o Bulk forming purgatives e.g. methycellulose absorb water and increas the volume of stool. 