While Reviewing the Health History of an Older Adult Experiencing

While reviewing the health history of an older adult experiencing hearing loss the nurse notes the patient has had no trauma or loss of balance. What aspect of this patients health history is most likely to be linked to the patients hearing deficit?

A) Recent completion of radiation therapy for treatment of thyroid cancer
B) Routine use of quinine for management of leg cramps
C) Allergy to hair coloring and hair spray
D) Previous perforation of the eardrum