A) This statement is incorrect. The catheter dressing should be changed regularly as per the healthcare provider's instructions, but it is not typically changed every week.

B) This statement is incorrect. The routine use of antibiotic ointment is not recommended, as it can lead to antibiotic resistance and is not necessary for all clients on peritoneal dialysis.

C) To reduce the risk of infection, the client should avoid touching the catheter site with clean hands. Maintaining proper hand hygiene is essential to prevent infection.

D) This statement is incorrect. Cleaning the catheter site with hydrogen peroxide is not recommended, as it can be too harsh and irritating to the skin. Instead, the site should be cleaned with mild soap and water or as instructed by the healthcare provider.