Simon has not been feeling well lately. He has had a low fever and has been tired. He often feels dizzy and loses his balance oc

The correct selection is D. Dizziness and loss of balance. Balance issues, such as dizziness and occasional loss of balance, are not normal and could point to a range of conditions, from benign to serious ones. These might include ear disorders, arthritis, vertigo, stroke, circulatory issues, among others. Therefore, if dizziness or similar symptoms are present, it's important to consult a doctor to identify the cause, as it might relate to a severe or urgent health situation. In Simon's case, he should definitely see a physician since he's experiencing dizziness and losing his balance.

I would suggest D.) Dizziness and loss of balance.