If an individual with diabetes consumes food that is high in simple carbohydrates, blood-sugar levels can rise above normal levels. Which of the following questions would provide the best direction for a researcher who wanted to study the impact of abnormally high blood-sugar levels on cellular homeostasis in diabetics?

A) Do the cells of diabetics use simple sugars as an energy source?
B) Do the cells in diabetics have more potassium ion channels in the cell membrane than the cells in
nondiabetics do?
C) Does water move from cells into blood vessels more rapidly in diabetics than in nondiabetics when blood-sugar levels are higher than normal?
D) Are cells in diabetics larger in size than those in nondiabetics?