A Native American patient is newly diagnosed with diabetes mellitus type 2 and is prescribed the antidiabetic drug metformin (Glucophage) $500 \mathrm{mg} \mathrm{PO}$ with morning and evening meals. Which statement best indicates to the nurse that the patient will adhere to the pharmacotherapy?
a. "I will no longer put sugar on my cereal because that will help me be healthier."
b. "If I take this medicine, I will feel better soon and won't have to take it anymore."
c. "To reduce the possibility of damage to my body, I must take the medicine as scheduled."
d. "I have diabetes because of my ancestry, so there's not much I can do about it."