In the readings in this course, we observed that Singing (whether done by the participants, the music therapist, and/or the patients' parents) was an intervention used with: 
a) Autistic adults and a Parkinson's group only 
b) Children receiving radiation treatment and infants in neonatal care only 
c) Autistic adults and children receiving radiation treatment only 
d) Autistic adults, infants in neonatal care, and a Parkinson's group