Question: How does the nurse reply when a patient asks how bisacodyl exerts its effects? Want Online Tutoring? O "It increases the water content of stool in the gastrointestinal tract, leading to softer bowel movements." "It speeds the transit in the colon by irritating the colon wall. O "It prevents water in the stool from being absorbed into the bloodstream." O "It contains oil to speed up the passage of stool through the intestine."