A nurse is assessing a 6-month-old infant during a well-child visit. The mother asks the nurse, "My child was born at 34 weeks. When should he receive his first dose of the measles, mumps, rubella vaccine?" Which of the following statements should the nurse make?

"Your child may receive that immunization at 12 months."

"Your child will need to wait until he is older than 18 months since he was born early."

"Your child may receive that immunization at today's visit."

"Your child received that immunization when he was in the hospital."