A home health nurse is providing teaching to the guardian of a child who has leukemia about methods to prevent complications. Which of the following statements by the guardian indicates an understanding of the teaching?

"I should take my child's rectal temperature daily."

"I will make sure my child gets a measles, mumps, and rubella vaccine this week."

"I'm sure my child will feel better now that he can ride his bicycle."

"I should inspect my child's mouth for sores."