The correct answer is administration of vaccination.
DTaP refers to a vaccine, which assists the younger children below the age of 7 to develop immunity against the three dreadful ailments caused by bacteria, like tetanus, diphtheria, and whooping cough.
Mild fever after the DTaP vaccine is not unusual, thus, the vaccination should not be withheld for that reason. However, vaccination can be withheld in case of previous anaphylactic sensitivity or reaction to a component in the vaccination.