A nurse is providing teaching to a client who is undergoing radiation therapy and has stomatitis. Which of the following responses by the client indicates an understanding of the teaching?

A) "I should use a soft-bristle toothbrush to clean my teeth after meals.": Using a soft-bristle toothbrush is crucial for clients with stomatitis, as it minimizes irritation to sensitive oral tissues. Gentle oral hygiene practices help maintain oral health and reduce discomfort, indicating that the client understands the need for careful dental care during radiation therapy. B) "I should limit my intake of dairy products to prevent nausea.": While some clients may experience nausea, limiting dairy is not typically recommended for managing stomatitis. In fact, dairy can be soothing for some individuals. This statement does not address the specific needs related to stomatitis and indicates a misunderstanding of dietary management during treatment. C) "I should gargle with an alcohol-based mouthwash to kill germs.": Alcohol-based mouthwashes can further irritate the mucous membranes and exacerbate stomatitis symptoms. Acknowledging this would demonstrate a lack of understanding, as alcohol is contraindicated in the management of oral mucosal irritation caused by radiation therapy. D) "I should moisten my lips with lemon-glycerin swabs.": Lemon-glycerin swabs can actually irritate the mouth and exacerbate discomfort in clients with stomatitis. This approach is not recommended, and selecting such a treatment indicates a misunderstanding of appropriate oral care measures during radiation therapy.