A nurse is reinforcing teaching with the parents of a 13-month-old child following administration of the measles mumps rubella (MMR) Immunization. Which of the following statements by the nurse is appropriate?

A. "Your child will receive another MMR immunization and the hepatitis B immunization at 3 years of age.": The next MMR immunization is typically at 4-6 years, not 3 years. B. "Your child will receive two more MMR immunizations over the next 2 years.": Only one more MMR vaccine is given at 4-6 years of age. C. "Your child will receive another MMR immunization at 4 to 6 years of age.": The second dose of MMR is given between 4-6 years of age. D. "Your child will have an MMR titer taken to determine the need for further immunizations.": Routine titers are not required for MMR unless there is a specific concern.