Which of the Following Statements Is/are Correct for Glucose Testing

Multiple Choice

Which of the following statements is/are correct for glucose testing by reagent strip?
I. Glucose oxidase reacts with glucose in the urine.
II. Non-glucose–reducing substances fail to react.
III. Ascorbic acid may cause a false-negative reaction.
IV. Hydrogen peroxide and peroxidase react to oxidize a chromogen.

A) I only
B) I, II, and III
C) I, II, and IV
D) I, II, III, and IV