The Parents of a 7-Month-Old Infant, Being Seen at the Clinic

The parents of a 7-month-old infant, being seen at the clinic for the administration of a hepatitis B vaccine, ask if their baby can also be given a vaccine to prevent the chickenpox during this visit. Which response by the nurse is the most appropriate?

A) "It will be less stressful to administer both shots during this visit."
B) "The additional injection will make your child run a fever."
C) "You really should wait and come back next month for this immunization."
D) "This immunization is not offered until after the age of 12 months."