Which of the Following Describes the Measurement of Glucose by Selective

Which of the following describes the measurement of glucose by selective electrode methodology?

A) The glucose-selective phase will bind the glucose present in the patient sample, allowing the development of a potential across the membrane for measurement.
B) Glucose will selectively diffuse across its selective phase and establish an equilibrium with the internal filling solution prior to direct measurement.
C) Glucose will interact with an immobilized enzyme, producing a product that will be oxidized at the platinum electrode, resulting in measurement.
D) Glucose will selectively pass through a membrane and be titrated, with the time required for titration equated to glucose concentration.