Final answer:
The complement of the event that a diabetic person presents at most one symptom is that they present at least two symptoms. Therefore correct option is E
Step-by-step explanation:
The complement of the event that a diabetic person presents at most one symptom is that a diabetic person presents at least two symptoms.
Polyuria, polydipsia, and polyphagia are the three major symptoms of diabetes. However, it is possible for a diabetic person to present none of these symptoms or only one of them. So, if a diabetic person presents at most one symptom, then they are not presenting all three symptoms, and they are also not presenting at least two symptoms. Therefore, the complement of the event that a diabetic person presents at most one symptom is that they present at least two symptoms.