The nurse is caring for a patient with a new permanent sigmoid colostomy and explaining information about care once the patient returns home. Which statement by the patient indicates that he or she requires further instruction on the topic?

A) "When I wash the stoma, I should just use warm water to clean the skin."
B) "If I eat a well-balanced diet, the stool will be soft and formed."
C) "I'll need to look at the skin around the stoma each time I change the pouch to be sure that there is no irritation."
D) "The stoma will stay the shape it is, so it will be easy to buy bags that fit."