The correct answer is All the aboveExplanation:Irritative/Stimulant / Contact purgative agents Fixed oils: castor oilDiphenylmethane, Phenolphthalein, BisacodylAnthroquinones (emodins), Senna, Cascara sagradaOsmotic purgative agents Magnesium salts: sulfate (Epsom salt), hydroxide, oxideSodium salts: sulfate (Glauber's salt), phosphateSodium potassium tartrateSodium phosphate and sodium tartrateBulk purgativesMethylcelluloseAgarPsylliumWheat branLubricant purgativesLiquid paraffinLubricantsMineral oil (liquid petroleum)White petroleum Additional Information Purgatives are drugs that cause marked intensification of intestinal activity and result in the expulsion of intestinal content from the colon and rectum. The terms aperient and cathartic describe the purgatives based on the intensity of action. A laxative or aperient is milder in action, elimination of soft but formed stools. Purgatives or cathartic are stronger actions resulting in more fluid evacuation. Osmotic, Bulk, Irritant, and Lubricant are different types of purgatives.