A nurse is teaching a client about how Docusate Sodium works. Which statement by the client indicates a correct understanding of he medication's mechanism of action? "Docusate increases the movement of my bowel muscles to help me go." "Docusate acts as a bulk-forming agent by absorbing water and increasing stool size:" "Docusate stimulates nerve endings in the colon to cause a bowel movement." "Docusate reduces the surface tension of stool, allowing water and fats to mix in and soften it:"