Both diabetes and HIV/AIDS are serious health conditions, but they have some key differences:
A. HIV/AIDS is potentially lethal, while diabetes is not. (Option A)
B. HIV/AIDS is infectious and spread by certain types of human contact, while diabetes is not infectious. (Option B)
C. A person's risk of developing HIV/AIDS is affected by their behavior, while diabetes occurs randomly. (Option C)
D. Diabetes can be effectively treated with medication, while HIV/AIDS cannot. (Option D)
So, the correct answer is that all of the options provided are valid differences between diabetes and HIV/AIDS.