Dicyclohexylcarbodiimide (DCCD) Is a Chemical That Disrupts the Function of ATP

Dicyclohexylcarbodiimide (DCCD) is a chemical that disrupts the function of ATP synthase. Why will treatment with DCCD cause a cell to die?

A) the pH of the intermembrane space becomes too high (alkaline)
B) the cell cannot form a proton gradient across the inner mitochondrial membrane
C) glucose cannot be oxidized to form pyruvate
D) electrons cannot travel down the electron transport chain
E) protons cannot flow from the intermembrane space into the matrix