A nurse working in an immunization clinic is caring for a 12-month-old infant who is receiving chemotherapy for neuroblastoma. Which of the following immunizations CANNOT be given to this infant at this time?

A. HIB (Haemophilus influenzae type b) vaccine is an inactivated vaccine and can be given to immunocompromised children. B. IPV (Inactivated Poliovirus Vaccine) is also an inactivated vaccine and can be given to immunocompromised children. C. Varicella (chickenpox) vaccine is a live attenuated vaccine and should not be given to immunocompromised children, such as those receiving chemotherapy, because it poses a risk of causing an infection in these individuals. D. DTaP (Diphtheria, Tetanus, and Pertussis) vaccine is an inactivated vaccine and can be administered to immunocompromised children.