A nurse is reinforcing teaching about colostomy care with a client. Which of the following client statements indicates an understanding of how to care for the colostomy?

"I will cleanse the stoma site gently with an antiseptic solution."

"I will contact my doctor right away if my stoma is red."

"I will cut the wafer opening 1 inch bigger than my stoma."

"I will empty the colostomy bag when it is one-half full.”